diff --git a/cmake/external_libs/libevent.cmake b/cmake/external_libs/libevent.cmake
index e94df0f94b..dcf58cd625 100644
--- a/cmake/external_libs/libevent.cmake
+++ b/cmake/external_libs/libevent.cmake
@@ -16,7 +16,7 @@ message("libevent using openssl stub dir: " ${openssl_ROOT})
 
 mindspore_add_pkg(libevent
         VER 2.1.12
-        LIBS event event_pthreads event_core
+        LIBS event event_pthreads event_core event_openssl
         URL ${REQ_URL}
         MD5 ${MD5}
         CMAKE_OPTION -DCMAKE_BUILD_TYPE:STRING=Release -DBUILD_TESTING=OFF -DOPENSSL_ROOT_DIR:PATH=${openssl_ROOT})
@@ -26,3 +26,4 @@ include_directories(${libevent_INC})
 add_library(mindspore::event ALIAS libevent::event)
 add_library(mindspore::event_pthreads ALIAS libevent::event_pthreads)
 add_library(mindspore::event_core ALIAS libevent::event_core)
+add_library(mindspore::event_openssl ALIAS libevent::event_openssl)
diff --git a/mindspore/ccsrc/CMakeLists.txt b/mindspore/ccsrc/CMakeLists.txt
index 5474f35064..ac14d65412 100644
--- a/mindspore/ccsrc/CMakeLists.txt
+++ b/mindspore/ccsrc/CMakeLists.txt
@@ -370,8 +370,9 @@ elseif(CMAKE_SYSTEM_NAME MATCHES "Darwin")
     target_link_libraries(_c_expression PRIVATE -Wl,-force_load mindspore mindspore_core -Wl,-noall_load)
 else()
     if(ENABLE_CPU AND (ENABLE_D OR ENABLE_GPU))
+        find_package(OpenSSL REQUIRED)
         target_link_libraries(mindspore proto_input mindspore::protobuf
-            mindspore::event mindspore::event_pthreads)
+            mindspore::event mindspore::event_pthreads mindspore::event_openssl  OpenSSL::SSL OpenSSL::Crypto)
         target_link_libraries(mindspore -Wl,--no-as-needed mindspore::event_core ps_cache)
         if(${ENABLE_IBVERBS} STREQUAL "ON")
             target_link_libraries(mindspore ibverbs rdmacm)
diff --git a/mindspore/ccsrc/ps/CMakeLists.txt b/mindspore/ccsrc/ps/CMakeLists.txt
index 6550ebe4e5..26189758da 100644
--- a/mindspore/ccsrc/ps/CMakeLists.txt
+++ b/mindspore/ccsrc/ps/CMakeLists.txt
@@ -22,7 +22,8 @@ if(NOT (ENABLE_CPU AND (ENABLE_D OR ENABLE_GPU)))
     list(REMOVE_ITEM _PS_SRC_FILES "core/communicator/http_client.cc")
     list(REMOVE_ITEM _PS_SRC_FILES "worker.cc")
     list(REMOVE_ITEM _PS_SRC_FILES "parameter_server.cc")
-    list(REMOVE_ITEM _PS_SRC_FILES "core/communicator/worker_queue.cc")
+    list(REMOVE_ITEM _PS_SRC_FILES "core/communicator/http_request_handler.cc")
+    list(REMOVE_ITEM _PS_SRC_FILES "core/communicator/ssl_wrapper.cc")
 endif()
 
 if(NOT ENABLE_D)
diff --git a/mindspore/ccsrc/ps/constants.h b/mindspore/ccsrc/ps/constants.h
index b6e2824052..1d716334c8 100644
--- a/mindspore/ccsrc/ps/constants.h
+++ b/mindspore/ccsrc/ps/constants.h
@@ -51,6 +51,9 @@ constexpr char kSparseAdamOp[] = "Adam";
 constexpr char kSparseLazyAdamOp[] = "LazyAdam";
 constexpr char kSparseFtrlOp[] = "FTRL";
 
+constexpr char kCertificateChain[] = "server.crt";
+constexpr char kPrivateKey[] = "server.key.unsecure";
+
 constexpr int64_t kInitWeightsCmd = 10;
 constexpr int64_t kInitWeightToOptimIdCmd = 11;
 constexpr int64_t kInitOptimInputsShapeCmd = 12;
diff --git a/mindspore/ccsrc/ps/core/communicator/worker_queue.cc b/mindspore/ccsrc/ps/core/communicator/http_request_handler.cc
similarity index 65%
rename from mindspore/ccsrc/ps/core/communicator/worker_queue.cc
rename to mindspore/ccsrc/ps/core/communicator/http_request_handler.cc
index 28c1119119..d38d76db69 100644
--- a/mindspore/ccsrc/ps/core/communicator/worker_queue.cc
+++ b/mindspore/ccsrc/ps/core/communicator/http_request_handler.cc
@@ -14,16 +14,39 @@
  * limitations under the License.
  */
 
-#include "ps/core/communicator/worker_queue.h"
+#include "ps/core/communicator/http_request_handler.h"
 
 namespace mindspore {
 namespace ps {
 namespace core {
-bool WorkerQueue::Initialize(int fd, std::unordered_map<std::string, OnRequestReceive *> handlers) {
+bool HttpRequestHandler::Initialize(int fd, const std::unordered_map<std::string, OnRequestReceive *> &handlers) {
   evbase_ = event_base_new();
   MS_EXCEPTION_IF_NULL(evbase_);
   struct evhttp *http = evhttp_new(evbase_);
   MS_EXCEPTION_IF_NULL(http);
+
+  SSL_CTX_set_options(SSLWrapper::GetInstance().GetSSLCtx(),
+                      SSL_OP_SINGLE_DH_USE | SSL_OP_SINGLE_ECDH_USE | SSL_OP_NO_SSLv2);
+  EC_KEY *ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
+  MS_EXCEPTION_IF_NULL(ecdh);
+
+  if (!SSL_CTX_use_certificate_chain_file(SSLWrapper::GetInstance().GetSSLCtx(), kCertificateChain)) {
+    MS_LOG(ERROR) << "SSL use certificate chain file failed!";
+    return false;
+  }
+
+  if (!SSL_CTX_use_PrivateKey_file(SSLWrapper::GetInstance().GetSSLCtx(), kPrivateKey, SSL_FILETYPE_PEM)) {
+    MS_LOG(ERROR) << "SSL use private key file failed!";
+    return false;
+  }
+
+  if (!SSL_CTX_check_private_key(SSLWrapper::GetInstance().GetSSLCtx())) {
+    MS_LOG(ERROR) << "SSL check private key file failed!";
+    return false;
+  }
+
+  evhttp_set_bevcb(http, BuffereventCallback, SSLWrapper::GetInstance().GetSSLCtx());
+
   int result = evhttp_accept_socket(http, fd);
   if (result < 0) {
     MS_LOG(ERROR) << "Evhttp accept socket failed!";
@@ -56,7 +79,7 @@ bool WorkerQueue::Initialize(int fd, std::unordered_map<std::string, OnRequestRe
   return true;
 }
 
-void WorkerQueue::Run() {
+void HttpRequestHandler::Run() {
   MS_LOG(INFO) << "Start http server!";
   MS_EXCEPTION_IF_NULL(evbase_);
   int ret = event_base_dispatch(evbase_);
@@ -76,7 +99,7 @@ void WorkerQueue::Run() {
   }
 }
 
-void WorkerQueue::Stop() {
+void HttpRequestHandler::Stop() {
   MS_LOG(INFO) << "Stop http server!";
 
   int ret = event_base_loopbreak(evbase_);
@@ -84,6 +107,13 @@ void WorkerQueue::Stop() {
     MS_LOG(EXCEPTION) << "event base loop break failed!";
   }
 }
+
+bufferevent *HttpRequestHandler::BuffereventCallback(event_base *base, void *arg) {
+  SSL_CTX *ctx = reinterpret_cast<SSL_CTX *>(arg);
+  SSL *ssl = SSL_new(ctx);
+  bufferevent *bev = bufferevent_openssl_socket_new(base, -1, ssl, BUFFEREVENT_SSL_ACCEPTING, BEV_OPT_CLOSE_ON_FREE);
+  return bev;
+}
 }  // namespace core
 }  // namespace ps
 }  // namespace mindspore
diff --git a/mindspore/ccsrc/ps/core/communicator/worker_queue.h b/mindspore/ccsrc/ps/core/communicator/http_request_handler.h
similarity index 57%
rename from mindspore/ccsrc/ps/core/communicator/worker_queue.h
rename to mindspore/ccsrc/ps/core/communicator/http_request_handler.h
index eb25734ea1..d0d53164d1 100644
--- a/mindspore/ccsrc/ps/core/communicator/worker_queue.h
+++ b/mindspore/ccsrc/ps/core/communicator/http_request_handler.h
@@ -14,12 +14,14 @@
  * limitations under the License.
  */
 
-#ifndef MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_WORKER_QUEUE_H_
-#define MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_WORKER_QUEUE_H_
+#ifndef MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_HTTP_REQUEST_HANDLER_H_
+#define MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_HTTP_REQUEST_HANDLER_H_
 
 #include <event2/event.h>
 #include <event2/http.h>
 #include <event2/http_struct.h>
+#include <event2/bufferevent.h>
+#include <event2/bufferevent_ssl.h>
 
 #include <string>
 #include <memory>
@@ -27,19 +29,26 @@
 
 #include "utils/log_adapter.h"
 #include "ps/core/communicator/http_message_handler.h"
+#include "ps/core/communicator/ssl_wrapper.h"
+#include "ps/constants.h"
 
 namespace mindspore {
 namespace ps {
 namespace core {
 using OnRequestReceive = std::function<void(std::shared_ptr<HttpMessageHandler>)>;
-class WorkerQueue {
+
+/* Each thread corresponds to one HttpRequestHandler, which is used to create one eventbase. All eventbase are listened
+ * on the same fd. Every evhttp_request is executed in one thread.
+ */
+class HttpRequestHandler {
  public:
-  WorkerQueue() : evbase_(nullptr) {}
-  virtual ~WorkerQueue() = default;
+  HttpRequestHandler() : evbase_(nullptr) {}
+  virtual ~HttpRequestHandler() = default;
 
-  bool Initialize(int fd, std::unordered_map<std::string, OnRequestReceive *> handlers);
+  bool Initialize(int fd, const std::unordered_map<std::string, OnRequestReceive *> &handlers);
   void Run();
   void Stop();
+  static bufferevent *BuffereventCallback(event_base *base, void *arg);
 
  private:
   struct event_base *evbase_;
@@ -47,4 +56,4 @@ class WorkerQueue {
 }  // namespace core
 }  // namespace ps
 }  // namespace mindspore
-#endif  // MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_WORKER_QUEUE_H_
+#endif  // MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_HTTP_REQUEST_HANDLER_H_
diff --git a/mindspore/ccsrc/ps/core/communicator/http_server.cc b/mindspore/ccsrc/ps/core/communicator/http_server.cc
index c1b0261880..ce26ee11bf 100644
--- a/mindspore/ccsrc/ps/core/communicator/http_server.cc
+++ b/mindspore/ccsrc/ps/core/communicator/http_server.cc
@@ -118,10 +118,10 @@ bool HttpServer::RegisterRoute(const std::string &url, OnRequestReceive *functio
 bool HttpServer::Start() {
   MS_LOG(INFO) << "Start http server!";
   for (size_t i = 0; i < thread_num_; i++) {
-    auto worker_queue = std::make_shared<WorkerQueue>();
-    worker_queue->Initialize(fd_, request_handlers_);
-    worker_queues_.push_back(worker_queue);
-    worker_threads_.emplace_back(std::make_shared<std::thread>(&WorkerQueue::Run, worker_queue));
+    auto http_request_handler = std::make_shared<HttpRequestHandler>();
+    http_request_handler->Initialize(fd_, request_handlers_);
+    http_request_handlers.push_back(http_request_handler);
+    worker_threads_.emplace_back(std::make_shared<std::thread>(&HttpRequestHandler::Run, http_request_handler));
   }
   return true;
 }
@@ -139,7 +139,7 @@ void HttpServer::Stop() {
 
   if (!is_stop_.load()) {
     for (size_t i = 0; i < thread_num_; i++) {
-      worker_queues_[i]->Stop();
+      http_request_handlers[i]->Stop();
     }
     is_stop_ = true;
   }
diff --git a/mindspore/ccsrc/ps/core/communicator/http_server.h b/mindspore/ccsrc/ps/core/communicator/http_server.h
index cbb03f85a1..1d5ab88d86 100644
--- a/mindspore/ccsrc/ps/core/communicator/http_server.h
+++ b/mindspore/ccsrc/ps/core/communicator/http_server.h
@@ -38,7 +38,7 @@
 #include <unordered_map>
 #include <vector>
 
-#include "ps/core/communicator/worker_queue.h"
+#include "ps/core/communicator/http_request_handler.h"
 
 namespace mindspore {
 namespace ps {
@@ -75,7 +75,7 @@ class HttpServer {
   int request_timeout_;
   size_t thread_num_;
   std::vector<std::shared_ptr<std::thread>> worker_threads_;
-  std::vector<std::shared_ptr<WorkerQueue>> worker_queues_;
+  std::vector<std::shared_ptr<HttpRequestHandler>> http_request_handlers;
   int32_t backlog_;
   std::unordered_map<std::string, OnRequestReceive *> request_handlers_;
   int fd_;
diff --git a/mindspore/ccsrc/ps/core/communicator/ssl_wrapper.cc b/mindspore/ccsrc/ps/core/communicator/ssl_wrapper.cc
new file mode 100644
index 0000000000..28df9165b6
--- /dev/null
+++ b/mindspore/ccsrc/ps/core/communicator/ssl_wrapper.cc
@@ -0,0 +1,59 @@
+
+/**
+ * Copyright 2021 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ps/core/communicator/ssl_wrapper.h"
+
+namespace mindspore {
+namespace ps {
+namespace core {
+SSLWrapper::SSLWrapper() : ssl_ctx_(nullptr) { InitSSL(); }
+
+SSLWrapper::~SSLWrapper() { CleanSSL(); }
+
+void SSLWrapper::InitSSL() {
+  SSL_library_init();
+  ERR_load_crypto_strings();
+  SSL_load_error_strings();
+  OpenSSL_add_all_algorithms();
+  int rand = RAND_poll();
+  if (rand == 0) {
+    MS_LOG(ERROR) << "RAND_poll failed";
+  }
+  ssl_ctx_ = SSL_CTX_new(SSLv23_server_method());
+  if (!ssl_ctx_) {
+    MS_LOG(ERROR) << "SSL_CTX_new failed";
+  }
+  X509_STORE *store = SSL_CTX_get_cert_store(ssl_ctx_);
+  if (X509_STORE_set_default_paths(store) != 1) {
+    MS_LOG(ERROR) << "X509_STORE_set_default_paths failed";
+  }
+}
+
+void SSLWrapper::CleanSSL() {
+  if (ssl_ctx_ != nullptr) {
+    SSL_CTX_free(ssl_ctx_);
+  }
+  ERR_free_strings();
+  EVP_cleanup();
+  ERR_remove_thread_state(nullptr);
+  CRYPTO_cleanup_all_ex_data();
+}
+
+SSL_CTX *SSLWrapper::GetSSLCtx() { return ssl_ctx_; }
+}  // namespace core
+}  // namespace ps
+}  // namespace mindspore
diff --git a/mindspore/ccsrc/ps/core/communicator/ssl_wrapper.h b/mindspore/ccsrc/ps/core/communicator/ssl_wrapper.h
new file mode 100644
index 0000000000..147b4aff08
--- /dev/null
+++ b/mindspore/ccsrc/ps/core/communicator/ssl_wrapper.h
@@ -0,0 +1,51 @@
+/**
+ * Copyright 2021 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_SSL_WRAPPER_H_
+#define MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_SSL_WRAPPER_H_
+
+#include <openssl/ssl.h>
+#include <openssl/rand.h>
+#include <openssl/err.h>
+
+#include "utils/log_adapter.h"
+
+namespace mindspore {
+namespace ps {
+namespace core {
+class SSLWrapper {
+ public:
+  static SSLWrapper &GetInstance() {
+    static SSLWrapper instance;
+    return instance;
+  }
+  SSL_CTX *GetSSLCtx();
+
+ private:
+  SSLWrapper();
+  virtual ~SSLWrapper();
+  SSLWrapper(const SSLWrapper &) = delete;
+  SSLWrapper &operator=(const SSLWrapper &) = delete;
+
+  void InitSSL();
+  void CleanSSL();
+
+  SSL_CTX *ssl_ctx_;
+};
+}  // namespace core
+}  // namespace ps
+}  // namespace mindspore
+#endif  // MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_SSL_WRAPPER_H_
diff --git a/tests/ut/cpp/CMakeLists.txt b/tests/ut/cpp/CMakeLists.txt
index 27aa68c49f..11d017da30 100644
--- a/tests/ut/cpp/CMakeLists.txt
+++ b/tests/ut/cpp/CMakeLists.txt
@@ -161,6 +161,8 @@ list(REMOVE_ITEM MINDSPORE_SRC_LIST "../../../mindspore/ccsrc/ps/scheduler.cc")
 list(REMOVE_ITEM MINDSPORE_SRC_LIST "../../../mindspore/ccsrc/ps/optimizer_info.cc")
 list(REMOVE_ITEM MINDSPORE_SRC_LIST "../../../mindspore/ccsrc/ps/optimizer_info_builder.cc")
 list(REMOVE_ITEM MINDSPORE_SRC_LIST "../../../mindspore/ccsrc/ps/worker.cc")
+list(REMOVE_ITEM MINDSPORE_SRC_LIST "../../../mindspore/ccsrc/ps/core/communicator/http_request_handler.cc")
+list(REMOVE_ITEM MINDSPORE_SRC_LIST "../../../mindspore/ccsrc/ps/core/communicator/http_server.cc")
 list(REMOVE_ITEM MINDSPORE_SRC_LIST "../../../mindspore/ccsrc/ps/parameter_server.cc")
 list(REMOVE_ITEM MINDSPORE_SRC_LIST "../../../mindspore/ccsrc/ps/ps_cache/gpu/gpu_ps_cache.cc")
 list(REMOVE_ITEM MINDSPORE_SRC_LIST "../../../mindspore/ccsrc/ps/ps_cache/ascend/ascend_ps_cache.cc")