diff --git a/src/sonic-yang-models/tests/files/sample_config_db.json b/src/sonic-yang-models/tests/files/sample_config_db.json
index 8e9d43c529b..edab599baf7 100644
--- a/src/sonic-yang-models/tests/files/sample_config_db.json
+++ b/src/sonic-yang-models/tests/files/sample_config_db.json
@@ -1612,7 +1612,8 @@
             "Ethernet9": {
                "action": "drop",
                "detection_time": "100",
-               "restoration_time": "400"
+               "restoration_time": "400",
+               "pfc_stat_history": "enable"
             }
         },
         "PFC_WD": {
diff --git a/src/sonic-yang-models/tests/yang_model_tests/tests/pfc.json b/src/sonic-yang-models/tests/yang_model_tests/tests/pfc.json
index 0f8b4d0289c..106f803f5fe 100644
--- a/src/sonic-yang-models/tests/yang_model_tests/tests/pfc.json
+++ b/src/sonic-yang-models/tests/yang_model_tests/tests/pfc.json
@@ -46,5 +46,12 @@
     "PFC_WDOG_WITH_INVALID_RESTORATION_TIME": {
         "desc": "PFC_WDOG_WITH_INVALID_RESTORATION_TIME",
         "eStr": ["restoration_time must be greater than or equal to POLL_INTERVAL"]
+    },
+    "PFC_WDOG_WITH_VALID_PFC_STAT_HISTORY": {
+        "desc": "PFC_WDOG_WITH_VALID_PFC_STAT_HISTORY"
+    },
+    "PFC_WDOG_WITH_INVALID_PFC_STAT_HISTORY": {
+        "desc": "PFC_WDOG_WITH_INVALID_PFC_STAT_HISTORY",
+        "eStr": ["pfc_stat_history must be either enable or disable"]
     }
 }
diff --git a/src/sonic-yang-models/tests/yang_model_tests/tests_config/pfc.json b/src/sonic-yang-models/tests/yang_model_tests/tests_config/pfc.json
index f493701384e..aaed8066132 100644
--- a/src/sonic-yang-models/tests/yang_model_tests/tests_config/pfc.json
+++ b/src/sonic-yang-models/tests/yang_model_tests/tests_config/pfc.json
@@ -329,5 +329,51 @@
                 ]
             }
         }
+    },
+    "PFC_WDOG_WITH_VALID_PFC_STAT_HISTORY": {
+        "sonic-port:sonic-port": {
+            "sonic-port:PORT": {
+                "PORT_LIST": [
+                {
+                    "admin_status": "up",
+                    "alias": "eth0",
+                    "description": "Ethernet4",
+                    "lanes": "65",
+                    "mtu": "9000",
+                    "name": "Ethernet4",
+                    "tpid": "0x8100",
+                    "speed": "25000"
+                }
+                ]
+            }
+        },
+        "sonic-pfcwd:sonic-pfcwd": {
+            "sonic-pfcwd:PFC_WD": {
+                "PFC_WD_LIST": [
+                    {
+                        "ifname": "Ethernet4",
+                        "action": "drop",
+                        "detection_time": 400,
+                        "restoration_time": 800,
+                        "pfc_stat_history": "enable"
+                    }
+                ]
+            }
+        }
+    },
+    "PFC_WDOG_WITH_INVALID_PFC_STAT_HISTORY": {
+        "sonic-pfcwd:sonic-pfcwd": {
+            "sonic-pfcwd:PFC_WD": {
+                "PFC_WD_LIST": [
+                    {
+                        "ifname": "Ethernet4",
+                        "action": "drop",
+                        "detection_time": 400,
+                        "restoration_time": 800,
+                        "pfc_stat_history": "down"
+                    }
+                ]
+            }
+        }
     }
 }
diff --git a/src/sonic-yang-models/yang-models/sonic-pfcwd.yang b/src/sonic-yang-models/yang-models/sonic-pfcwd.yang
index 27c2a49f2ed..ae07cf9a0f9 100644
--- a/src/sonic-yang-models/yang-models/sonic-pfcwd.yang
+++ b/src/sonic-yang-models/yang-models/sonic-pfcwd.yang
@@ -71,6 +71,17 @@ module sonic-pfcwd {
                     description
                         "Time delay before resuming normal PFC operation in msec.";
                 }
+                leaf pfc_stat_history {
+                    must "../ifname != 'GLOBAL'";
+                    type string {
+                        pattern "enable|disable" {
+                            error-message "pfc_stat_history must be either enable or disable";
+                            error-app-tag pfc-stat-history-invalid-status;
+                        }
+                    }
+                    description
+                        "Toggle for PFC Historical Statistics estimation.";
+                }
                 leaf POLL_INTERVAL {
                     must "../ifname = 'GLOBAL'";
                     type uint32 {