diff --git a/server/api/config.go b/server/api/config.go
index 0c895ce21c1..af47b8bf18e 100644
--- a/server/api/config.go
+++ b/server/api/config.go
@@ -49,6 +49,16 @@ func (h *confHandler) Get(w http.ResponseWriter, r *http.Request) {
 	h.rd.JSON(w, http.StatusOK, h.svr.GetConfig())
 }
 
+func (h *confHandler) GetDefault(w http.ResponseWriter, r *http.Request) {
+	config := config.NewConfig()
+	err := config.Adjust(nil)
+	if err != nil {
+		h.rd.JSON(w, http.StatusInternalServerError, err.Error())
+	}
+
+	h.rd.JSON(w, http.StatusOK, config)
+}
+
 func (h *confHandler) Post(w http.ResponseWriter, r *http.Request) {
 	if h.svr.GetConfig().EnableDynamicConfig {
 		cm := h.svr.GetConfigManager()
diff --git a/server/api/config_test.go b/server/api/config_test.go
index 7aac2c666a3..bd381ef0b0e 100644
--- a/server/api/config_test.go
+++ b/server/api/config_test.go
@@ -19,6 +19,7 @@ import (
 	"time"
 
 	. "github.com/pingcap/check"
+	"github.com/pingcap/pd/v4/pkg/typeutil"
 	"github.com/pingcap/pd/v4/server"
 	"github.com/pingcap/pd/v4/server/config"
 )
@@ -177,3 +178,40 @@ func (s *testConfigSuite) TestConfigLabelProperty(c *C) {
 	c.Assert(cfg, HasLen, 1)
 	c.Assert(cfg["foo"], DeepEquals, []config.StoreLabel{{Key: "zone", Value: "cn2"}})
 }
+
+func (s *testConfigSuite) TestConfigDefault(c *C) {
+	addr := fmt.Sprintf("%s/config", s.urlPrefix)
+
+	r := map[string]int{"max-replicas": 5}
+	postData, err := json.Marshal(r)
+	c.Assert(err, IsNil)
+	err = postJSON(addr, postData)
+	c.Assert(err, IsNil)
+	l := map[string]interface{}{
+		"location-labels":       "zone,rack",
+		"region-schedule-limit": 10,
+	}
+	postData, err = json.Marshal(l)
+	c.Assert(err, IsNil)
+	err = postJSON(addr, postData)
+	c.Assert(err, IsNil)
+
+	l = map[string]interface{}{
+		"metric-storage": "http://127.0.0.1:9090",
+	}
+	postData, err = json.Marshal(l)
+	c.Assert(err, IsNil)
+	err = postJSON(addr, postData)
+	c.Assert(err, IsNil)
+
+	time.Sleep(20 * time.Millisecond)
+	addr = fmt.Sprintf("%s/config/default", s.urlPrefix)
+	defaultCfg := &config.Config{}
+	err = readJSON(addr, defaultCfg)
+	c.Assert(err, IsNil)
+
+	c.Assert(defaultCfg.Replication.MaxReplicas, Equals, uint64(3))
+	c.Assert(defaultCfg.Replication.LocationLabels, DeepEquals, typeutil.StringSlice([]string{}))
+	c.Assert(defaultCfg.Schedule.RegionScheduleLimit, Equals, uint64(2048))
+	c.Assert(defaultCfg.PDServerCfg.MetricStorage, Equals, "")
+}
diff --git a/server/api/router.go b/server/api/router.go
index 40bdec760c8..4501855a74d 100644
--- a/server/api/router.go
+++ b/server/api/router.go
@@ -78,6 +78,7 @@ func createRouter(ctx context.Context, prefix string, svr *server.Server) (*mux.
 	confHandler := newConfHandler(svr, rd)
 	apiRouter.HandleFunc("/config", confHandler.Get).Methods("GET")
 	apiRouter.HandleFunc("/config", confHandler.Post).Methods("POST")
+	apiRouter.HandleFunc("/config/default", confHandler.GetDefault).Methods("GET")
 	apiRouter.HandleFunc("/config/schedule", confHandler.GetSchedule).Methods("GET")
 	apiRouter.HandleFunc("/config/schedule", confHandler.SetSchedule).Methods("POST")
 	apiRouter.HandleFunc("/config/replicate", confHandler.GetReplication).Methods("GET")