diff --git a/lib_acl_cpp/include/acl_cpp/stream/sslbase_io.hpp b/lib_acl_cpp/include/acl_cpp/stream/sslbase_io.hpp
index e197c2e11..164a9f6f9 100644
--- a/lib_acl_cpp/include/acl_cpp/stream/sslbase_io.hpp
+++ b/lib_acl_cpp/include/acl_cpp/stream/sslbase_io.hpp
@@ -71,6 +71,20 @@ public:
 		return has_sni_;
 	}
 
+	/**
+	 * 设置本 SSL IO 对象的绑定对象，方便应用处理自身业务逻辑
+	 * @param ctx {void*}
+	 */
+	void set_ctx(void* ctx);
+
+	/**
+	 * 获得由 set_ctx() 设置的绑定对象
+	 * @return {void*}
+	 */
+	void* get_ctx() const {
+		return ctx_;
+	}
+
 protected:
 	sslbase_conf& base_conf_;
 	bool server_side_;
@@ -80,6 +94,7 @@ protected:
 	ACL_VSTREAM* stream_;
 	string sni_host_;	// Just for client to set SNI.
 	bool has_sni_;		// Just for server to check SNI.
+	void* ctx_;		// The context for every SSL IO.
 };
 
 } // namespace acl
diff --git a/lib_acl_cpp/samples/ssl/server/main.cpp b/lib_acl_cpp/samples/ssl/server/main.cpp
index 67dd56adc..7053cafdd 100644
--- a/lib_acl_cpp/samples/ssl/server/main.cpp
+++ b/lib_acl_cpp/samples/ssl/server/main.cpp
@@ -16,12 +16,19 @@ public:
 	bool check(acl::sslbase_io* io, const char* sni, acl::string& host) {
 		if (io) {
 			io->set_has_sni(true);
+			acl::sslbase_io* me = (acl::sslbase_io*) io->get_ctx();
+			if (io != me) {
+				printf("Invalid io=%p, me=%p\r\n", io, me);
+				return false;
+			}
+			printf("ssl_sni_checker::check: sslbase_io=%p\r\n", io);
+		} else {
+			printf("ssl_sni_checker::check: sslbase_io=NULL\r\n");
 		}
 
-		printf("ssl_sni_checker::check: sslbase_io=%p\n", io);
 
 		if (sni == NULL || *sni == 0) {
-			printf("Invalid SNI\r\n");
+			printf("Invalid SNI=%p\r\n", sni);
 			return false;
 		}
 
@@ -74,6 +81,9 @@ private:
 		bool non_block = false;
 		acl::sslbase_io* ssl = ssl_conf_.create(non_block);
 
+		// 设置私有对象，在 ssl_sni_checker::check() 中检查
+		ssl->set_ctx(ssl);
+
 		// 对于使用 SSL 方式的流对象，需要将 SSL IO 流对象注册至网络
 		// 连接流对象中，即用 ssl io 替换 stream 中默认的底层 IO 过程
 		if (conn_->setup_hook(ssl) == ssl) {
diff --git a/lib_acl_cpp/src/stream/sslbase_io.cpp b/lib_acl_cpp/src/stream/sslbase_io.cpp
index e9c9d7643..54acfe4fd 100644
--- a/lib_acl_cpp/src/stream/sslbase_io.cpp
+++ b/lib_acl_cpp/src/stream/sslbase_io.cpp
@@ -17,6 +17,7 @@ sslbase_io::sslbase_io(sslbase_conf& conf, bool server_side,
 , handshake_ok_(false)
 , stream_(NULL)
 , has_sni_(false)
+, ctx_(NULL)
 {
 	refers_ = NEW atomic_long(0);
 }
@@ -53,4 +54,8 @@ void sslbase_io::set_has_sni(bool yes) {
 	has_sni_ = yes;
 }
 
+void sslbase_io::set_ctx(void *ctx) {
+	ctx_ = ctx;
+}
+
 } // namespace acl