diff --git a/bindinfo/bind_test.go b/bindinfo/bind_test.go
index d38cbbae8bd81..48be771c15e7f 100644
--- a/bindinfo/bind_test.go
+++ b/bindinfo/bind_test.go
@@ -1802,3 +1802,21 @@ func (s *testSuite) TestCapturedBindingCharset(c *C) {
 	c.Assert(rows[0][6], Equals, "")
 	c.Assert(rows[0][7], Equals, "")
 }
+
+func (s *testSuite) TestCaptureWithZeroSlowLogThreshold(c *C) {
+	tk := testkit.NewTestKit(c, s.store)
+	s.cleanBindingEnv(tk)
+	tk.MustExec("use test")
+	tk.MustExec("drop table if exists t")
+	tk.MustExec("create table t(a int)")
+	stmtsummary.StmtSummaryByDigestMap.Clear()
+	c.Assert(tk.Se.Auth(&auth.UserIdentity{Username: "root", Hostname: "%"}, nil, nil), IsTrue)
+	tk.MustExec("set tidb_slow_log_threshold = 0")
+	tk.MustExec("select * from t")
+	tk.MustExec("select * from t")
+	tk.MustExec("set tidb_slow_log_threshold = 300")
+	tk.MustExec("admin capture bindings")
+	rows := tk.MustQuery("show global bindings").Rows()
+	c.Assert(len(rows), Equals, 1)
+	c.Assert(rows[0][0], Equals, "select * from test . t")
+}
diff --git a/executor/adapter.go b/executor/adapter.go
index ce9d68de32ab4..4c1c2a2343194 100644
--- a/executor/adapter.go
+++ b/executor/adapter.go
@@ -966,13 +966,16 @@ func getPlanDigest(sctx sessionctx.Context, p plannercore.Plan) (normalized, pla
 
 // getEncodedPlan gets the encoded plan, and generates the hint string if indicated.
 func getEncodedPlan(sctx sessionctx.Context, p plannercore.Plan, genHint bool, n ast.StmtNode) (encodedPlan, hintStr string) {
+	var hintSet bool
 	encodedPlan = sctx.GetSessionVars().StmtCtx.GetEncodedPlan()
-	hintStr = sctx.GetSessionVars().StmtCtx.GetPlanHint()
-	if len(encodedPlan) > 0 {
+	hintStr, hintSet = sctx.GetSessionVars().StmtCtx.GetPlanHint()
+	if len(encodedPlan) > 0 && (!genHint || hintSet) {
 		return
 	}
-	encodedPlan = plannercore.EncodePlan(p)
-	sctx.GetSessionVars().StmtCtx.SetEncodedPlan(encodedPlan)
+	if len(encodedPlan) == 0 {
+		encodedPlan = plannercore.EncodePlan(p)
+		sctx.GetSessionVars().StmtCtx.SetEncodedPlan(encodedPlan)
+	}
 	if genHint {
 		hints := plannercore.GenHintsFromPhysicalPlan(p)
 		if n != nil {
diff --git a/sessionctx/stmtctx/stmtctx.go b/sessionctx/stmtctx/stmtctx.go
index d0f461e814ac9..aaf8b562f379f 100644
--- a/sessionctx/stmtctx/stmtctx.go
+++ b/sessionctx/stmtctx/stmtctx.go
@@ -147,6 +147,7 @@ type StatementContext struct {
 	planDigest            string
 	encodedPlan           string
 	planHint              string
+	planHintSet           bool
 	Tables                []TableEntry
 	PointExec             bool  // for point update cached execution, Constant expression need to set "paramMarker"
 	lockWaitStartTime     int64 // LockWaitStartTime stores the pessimistic lock wait start time
@@ -229,12 +230,13 @@ func (sc *StatementContext) SetEncodedPlan(encodedPlan string) {
 }
 
 // GetPlanHint gets the hint string generated from the plan.
-func (sc *StatementContext) GetPlanHint() string {
-	return sc.planHint
+func (sc *StatementContext) GetPlanHint() (string, bool) {
+	return sc.planHint, sc.planHintSet
 }
 
 // SetPlanHint sets the hint for the plan.
 func (sc *StatementContext) SetPlanHint(hint string) {
+	sc.planHintSet = true
 	sc.planHint = hint
 }