diff --git a/orchagent/main.cpp b/orchagent/main.cpp
index d50508f6ce..5dfc124d5d 100644
--- a/orchagent/main.cpp
+++ b/orchagent/main.cpp
@@ -73,7 +73,7 @@ uint32_t create_switch_timeout = 0;
 
 void usage()
 {
-    cout << "usage: orchagent [-h] [-r record_type] [-d record_location] [-f swss_rec_filename] [-j sairedis_rec_filename] [-b batch_size] [-m MAC] [-i INST_ID] [-s] [-z mode] [-k bulk_size] [-q zmq_server_address] [-c mode] [-t create_switch_timeout] [-v VRF]" << endl;
+    cout << "usage: orchagent [-h] [-r record_type] [-d record_location] [-f swss_rec_filename] [-j sairedis_rec_filename] [-b batch_size] [-m MAC] [-i INST_ID] [-s] [-z mode] [-k bulk_size] [-q zmq_server_address] [-c mode] [-t create_switch_timeout] [-v VRF] [-I heart_beat_interval]" << endl;
     cout << "    -h: display this message" << endl;
     cout << "    -r record_type: record orchagent logs with type (default 3)" << endl;
     cout << "                    Bit 0: sairedis.rec, Bit 1: swss.rec, Bit 2: responsepublisher.rec. For example:" << endl;
@@ -95,6 +95,7 @@ void usage()
     cout << "    -c counter mode (traditional|asic_db), default: asic_db" << endl;
     cout << "    -t Override create switch timeout, in sec" << endl;
     cout << "    -v vrf: VRF name (default empty)" << endl;
+    cout << "    -I heart_beat_interval: Heart beat interval in millisecond (default 10)" << endl;
 }
 
 void sighup_handler(int signo)
@@ -350,7 +351,7 @@ int main(int argc, char **argv)
     string responsepublisher_rec_filename = Recorder::RESPPUB_FNAME;
     int record_type = 3; // Only swss and sairedis recordings enabled by default.
 
-    while ((opt = getopt(argc, argv, "b:m:r:f:j:d:i:hsz:k:q:c:t:v:")) != -1)
+    while ((opt = getopt(argc, argv, "b:m:r:f:j:d:i:hsz:k:q:c:t:v:I:")) != -1)
     {
         switch (opt)
         {
@@ -450,6 +451,12 @@ int main(int argc, char **argv)
                 vrf = optarg;
             }
             break;
+        case 'I':
+            if (optarg)
+            {
+                g_heart_beat_interval = atoi(optarg);
+            }
+            break;
         default: /* '?' */
             exit(EXIT_FAILURE);
         }
diff --git a/orchagent/orchdaemon.cpp b/orchagent/orchdaemon.cpp
index 13ef89c487..1a43f21187 100644
--- a/orchagent/orchdaemon.cpp
+++ b/orchagent/orchdaemon.cpp
@@ -24,7 +24,8 @@ using namespace swss;
 #define APP_FABRIC_MONITOR_DATA_TABLE_NAME      "FABRIC_MONITOR_TABLE"
 
 /* orchagent heart beat message interval */
-#define HEART_BEAT_INTERVAL_MSECS 10 * 1000
+#define HEART_BEAT_INTERVAL_MSECS_DEFAULT 10 * 1000
+long int g_heart_beat_interval = HEART_BEAT_INTERVAL_MSECS_DEFAULT;
 
 extern sai_switch_api_t*           sai_switch_api;
 extern sai_object_id_t             gSwitchId;
@@ -1091,9 +1092,15 @@ void OrchDaemon::addOrchList(Orch *o)
 
 void OrchDaemon::heartBeat(std::chrono::time_point<std::chrono::high_resolution_clock> tcurrent)
 {
+    if (g_heart_beat_interval <= 0)
+    {
+        // disable heart beat feature when interval is 0
+        return;
+    }
+
     // output heart beat message to SYSLOG
     auto diff = std::chrono::duration_cast<std::chrono::milliseconds>(tcurrent - m_lastHeartBeat);
-    if (diff.count() >= HEART_BEAT_INTERVAL_MSECS)
+    if (diff.count() >= g_heart_beat_interval)
     {
         m_lastHeartBeat = tcurrent;
         // output heart beat message to supervisord with 'PROCESS_COMMUNICATION_STDOUT' event: http://supervisord.org/events.html
diff --git a/orchagent/orchdaemon.h b/orchagent/orchdaemon.h
index 6a1c0b999a..63db44460b 100644
--- a/orchagent/orchdaemon.h
+++ b/orchagent/orchdaemon.h
@@ -56,6 +56,8 @@
 
 using namespace swss;
 
+extern long int g_heart_beat_interval;
+
 class OrchDaemon
 {
 public:
diff --git a/tests/test_zmq.py b/tests/test_zmq.py
index 0f7e5359f3..6312c443d2 100644
--- a/tests/test_zmq.py
+++ b/tests/test_zmq.py
@@ -120,3 +120,37 @@ def test_vrf(self, dvs):
         dvs.runcmd("cp /usr/bin/orchagent.sh_vrf_ut_backup /usr/bin/orchagent.sh")
         dvs.stop_swss()
         dvs.start_swss()
+
+    def test_heartbeat(self, dvs):
+        # Improve test code coverage, change orchagent to disable heartbeat
+        dvs.runcmd("cp /usr/bin/orchagent.sh /usr/bin/orchagent.sh_hb_ut_backup")
+        dvs.runcmd("sed -i.bak 's/\/usr\/bin\/orchagent /\/usr\/bin\/orchagent -I 0 /g' /usr/bin/orchagent.sh")
+        dvs.stop_swss()
+        dvs.start_swss()
+
+        # wait orchagent start
+        time.sleep(3)
+        process_statue = dvs.runcmd("ps -ef")
+        zmq_logger.debug("Process status: {}".format(process_statue))
+
+        # revert change
+        dvs.runcmd("cp /usr/bin/orchagent.sh_hb_ut_backup /usr/bin/orchagent.sh")
+        dvs.stop_swss()
+        dvs.start_swss()
+
+    def test_usage(self, dvs):
+        # Improve test code coverage, change orchagent to display usage
+        dvs.runcmd("cp /usr/bin/orchagent.sh /usr/bin/orchagent.sh_usage_ut_backup")
+        dvs.runcmd("sed -i.bak 's/\/usr\/bin\/orchagent /\/usr\/bin\/orchagent -h /g' /usr/bin/orchagent.sh")
+        dvs.stop_swss()
+        dvs.start_swss()
+
+        # wait orchagent start
+        time.sleep(3)
+        process_statue = dvs.runcmd("ps -ef")
+        zmq_logger.debug("Process status: {}".format(process_statue))
+
+        # revert change
+        dvs.runcmd("cp /usr/bin/orchagent.sh_usage_ut_backup /usr/bin/orchagent.sh")
+        dvs.stop_swss()
+        dvs.start_swss()