diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 7f75ae13d60..679ca47b940 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -506,6 +506,9 @@ static void cmd_help_long_parsed(void *parsed_result,
 			"mcast_addr remove (port_id) (mcast_addr)\n"
 			"    Remove a multicast MAC address from port_id.\n\n"
 
+			"mcast_addr flush (port_id)\n"
+			"    Flush all multicast MAC addresses on port_id.\n\n"
+
 			"set vf mac addr (port_id) (vf_id) (XX:XX:XX:XX:XX:XX)\n"
 			"    Set the MAC address for a VF from the PF.\n\n"
 
@@ -8567,6 +8570,45 @@ static cmdline_parse_inst_t cmd_mcast_addr = {
 	},
 };
 
+/* *** FLUSH MULTICAST MAC ADDRESS ON PORT *** */
+struct cmd_mcast_addr_flush_result {
+	cmdline_fixed_string_t mcast_addr_cmd;
+	cmdline_fixed_string_t what;
+	uint16_t port_num;
+};
+
+static void cmd_mcast_addr_flush_parsed(void *parsed_result,
+		__rte_unused struct cmdline *cl,
+		__rte_unused void *data)
+{
+	struct cmd_mcast_addr_flush_result *res = parsed_result;
+
+	mcast_addr_flush(res->port_num);
+}
+
+static cmdline_parse_token_string_t cmd_mcast_addr_flush_cmd =
+	TOKEN_STRING_INITIALIZER(struct cmd_mcast_addr_result,
+				 mcast_addr_cmd, "mcast_addr");
+static cmdline_parse_token_string_t cmd_mcast_addr_flush_what =
+	TOKEN_STRING_INITIALIZER(struct cmd_mcast_addr_result, what,
+				 "flush");
+static cmdline_parse_token_num_t cmd_mcast_addr_flush_portnum =
+	TOKEN_NUM_INITIALIZER(struct cmd_mcast_addr_result, port_num,
+				 RTE_UINT16);
+
+static cmdline_parse_inst_t cmd_mcast_addr_flush = {
+	.f = cmd_mcast_addr_flush_parsed,
+	.data = (void *)0,
+	.help_str = "mcast_addr flush <port_id> : "
+		"flush all multicast MAC addresses on port_id",
+	.tokens = {
+		(void *)&cmd_mcast_addr_flush_cmd,
+		(void *)&cmd_mcast_addr_flush_what,
+		(void *)&cmd_mcast_addr_flush_portnum,
+		NULL,
+	},
+};
+
 /* vf vlan anti spoof configuration */
 
 /* Common result structure for vf vlan anti spoof */
@@ -12935,6 +12977,7 @@ static cmdline_parse_ctx_t builtin_ctx[] = {
 	(cmdline_parse_inst_t *)&cmd_set_port_meter_stats_mask,
 	(cmdline_parse_inst_t *)&cmd_show_port_meter_stats,
 	(cmdline_parse_inst_t *)&cmd_mcast_addr,
+	(cmdline_parse_inst_t *)&cmd_mcast_addr_flush,
 	(cmdline_parse_inst_t *)&cmd_set_vf_vlan_anti_spoof,
 	(cmdline_parse_inst_t *)&cmd_set_vf_mac_anti_spoof,
 	(cmdline_parse_inst_t *)&cmd_set_vf_vlan_stripq,
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 709864bb441..7034fa125bc 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -6829,6 +6829,24 @@ mcast_addr_remove(portid_t port_id, struct rte_ether_addr *mc_addr)
 		mcast_addr_pool_append(port, mc_addr);
 }
 
+void
+mcast_addr_flush(portid_t port_id)
+{
+	int ret;
+
+	if (port_id_is_invalid(port_id, ENABLED_WARN))
+		return;
+
+	ret = rte_eth_dev_set_mc_addr_list(port_id, NULL, 0);
+	if (ret != 0) {
+		fprintf(stderr,
+			"Failed to flush all multicast MAC addresses on port_id %u\n",
+			port_id);
+		return;
+	}
+	mcast_addr_pool_destroy(port_id);
+}
+
 void
 port_dcb_info_display(portid_t port_id)
 {
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index e236845a81e..6457ac4c0a4 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -1181,6 +1181,7 @@ void show_mcast_macs(portid_t port_id);
 /* Functions to manage the set of filtered Multicast MAC addresses */
 void mcast_addr_add(portid_t port_id, struct rte_ether_addr *mc_addr);
 void mcast_addr_remove(portid_t port_id, struct rte_ether_addr *mc_addr);
+void mcast_addr_flush(portid_t port_id);
 void port_dcb_info_display(portid_t port_id);
 
 uint8_t *open_file(const char *file_path, uint32_t *size);
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index e6d218caaa1..7a40980d6c9 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -1323,6 +1323,13 @@ filtered by port::
 
    testpmd> mcast_addr remove (port_id) (mcast_addr)
 
+mcast_addr flush
+~~~~~~~~~~~~~~~~
+
+Flush all multicast MAC addresses on port_id::
+
+   testpmd> mcast_addr flush (port_id)
+
 mac_addr add (for VF)
 ~~~~~~~~~~~~~~~~~~~~~