diff --git a/pkg/base/t_http_an__.go b/pkg/base/t_http_an__.go
index 15f3f25..d3314be 100644
--- a/pkg/base/t_http_an__.go
+++ b/pkg/base/t_http_an__.go
@@ -44,6 +44,13 @@ type StatGroup struct {
 	StatPub     StatPub   `json:"pub"`
 	StatSubs    []StatSub `json:"subs"` // TODO(chef): [opt] 增加数量字段，因为这里不一定全部放入
 	StatPull    StatPull  `json:"pull"`
+
+	Fps []RecordPerSec `json:"in_frame_per_sec"`
+}
+
+type RecordPerSec struct {
+	UnixSec int64  `json:"unix_sec"`
+	V       uint32 `json:"v"`
 }
 
 type StatSession struct {
@@ -75,6 +82,11 @@ type StatPull struct {
 	StatSession
 }
 
+type PeriodRecord struct {
+	ringBuf []RecordPerSec
+	nRecord int
+}
+
 // ---------------------------------------------------------------------------------------------------------------------
 
 func Session2StatPub(session ISession) StatPub {
@@ -94,3 +106,61 @@ func Session2StatPull(session ISession) StatPull {
 		session.GetStat(),
 	}
 }
+
+/**
+  @note result s.Fps is not ordered
+*/
+func (s *StatGroup) GetFpsFrom(p *PeriodRecord, nowUnixSec int64) {
+	if s.Fps == nil || cap(s.Fps) < p.nRecord {
+		s.Fps = make([]RecordPerSec, p.nRecord)
+	} else {
+		s.Fps = s.Fps[0:p.nRecord]
+	}
+	nRecord := 0
+	p.nRecord = 0
+	for idx, record := range p.ringBuf {
+		if record.UnixSec == 0 {
+			continue
+		}
+		if record.UnixSec == nowUnixSec {
+			// value at nowUnixSec not completely recorded
+			p.nRecord++
+			continue
+		}
+		s.Fps[nRecord] = record
+		nRecord++
+		p.ringBuf[idx].UnixSec = 0
+	}
+	s.Fps = s.Fps[0:nRecord]
+}
+
+func NewPeriodRecord(bufSize int) PeriodRecord {
+	return PeriodRecord{
+		ringBuf: make([]RecordPerSec, bufSize),
+		nRecord: 0,
+	}
+}
+
+func (p *PeriodRecord) Add(unixSec int64, v uint32) {
+	var index int64
+	var record RecordPerSec
+	index = unixSec % int64(len(p.ringBuf))
+	record = p.ringBuf[index]
+	if record.UnixSec == unixSec {
+		p.ringBuf[index].V = record.V + v
+	} else {
+		if record.UnixSec == 0 {
+			p.nRecord++
+		}
+		p.ringBuf[index].UnixSec = unixSec
+		p.ringBuf[index].V = v
+	}
+	return
+}
+
+func (p *PeriodRecord) Clear() {
+	for idx := range p.ringBuf {
+		p.ringBuf[idx].UnixSec = 0
+		p.ringBuf[idx].V = 0
+	}
+}
diff --git a/pkg/base/t_http_an__test.go b/pkg/base/t_http_an__test.go
new file mode 100644
index 0000000..fe8274c
--- /dev/null
+++ b/pkg/base/t_http_an__test.go
@@ -0,0 +1,133 @@
+package base
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+)
+
+func ringBufToStr(ringBuf []RecordPerSec) string {
+	var buf strings.Builder
+	for idx, record := range ringBuf {
+		if record.UnixSec == 0 {
+			continue
+		}
+		record_str := fmt.Sprintf(" [%d]:{%d,%d}", idx, record.UnixSec, record.V)
+		buf.WriteString(record_str)
+	}
+	return buf.String()
+}
+
+func TestPeriodRecord(t *testing.T) {
+	records := NewPeriodRecord(16)
+
+	expected_fps := []RecordPerSec{
+		{UnixSec: 1, V: 11},
+		{UnixSec: 3, V: 13},
+		{UnixSec: 9, V: 19},
+		{UnixSec: 16, V: 26},
+		{UnixSec: 17, V: 27}, // fpsRingBuf len 16, so replace 1
+		{UnixSec: 19, V: 29}, // replace 3
+		{UnixSec: 25, V: 35}, // replace 9
+		{UnixSec: 26, V: 36},
+	}
+	expected_n := 5
+
+	for _, record := range expected_fps {
+		records.Add(record.UnixSec, 1)
+		records.Add(record.UnixSec, 2)
+		records.Add(record.UnixSec, 3)
+		records.Add(record.UnixSec, record.V-6)
+		t.Logf("records.nRecord:%d", records.nRecord)
+	}
+
+	if records.nRecord != expected_n {
+		t.Fatalf("nFpsRecord not match, got:%d expect:%d, %s",
+			records.nRecord, expected_n, ringBufToStr(records.ringBuf))
+	}
+
+	nowUnixSec := int64(26)
+	expected_n = 4 // 26 not complete
+	statSess := StatGroup{}
+	statSess.GetFpsFrom(&records, nowUnixSec)
+	// { 16, 17, 19, 25 }
+	// 26 not complete
+	if len(statSess.Fps) != expected_n {
+		t.Fatalf("len(statSess.Fps) not match, got:%d expect:%d, %s",
+			len(statSess.Fps), expected_n, ringBufToStr(statSess.Fps))
+	}
+
+	funCmpRecord := func(index int, record *RecordPerSec, expect *RecordPerSec) {
+		if record.UnixSec != expect.UnixSec {
+			t.Fatalf("index:%d UnixSec not match, got:%d expect:%d",
+				index, record.UnixSec, expect.UnixSec)
+		}
+		if record.V != expect.V {
+			t.Fatalf("index:%d V not match, got:%d expect:%d", index, record.V, expect.V)
+		}
+	}
+
+	funCmpRecord(0, &statSess.Fps[0], &expected_fps[3])
+	funCmpRecord(1, &statSess.Fps[1], &expected_fps[4])
+	funCmpRecord(2, &statSess.Fps[2], &expected_fps[5])
+	funCmpRecord(3, &statSess.Fps[3], &expected_fps[6])
+	t.Log(ringBufToStr(statSess.Fps))
+
+	t.Log("2nd period record test")
+
+	expected_fps_2nd := []RecordPerSec{
+		{UnixSec: 0 + 16*2, V: 10 + 16*2},
+		{UnixSec: 1 + 16*2, V: 11 + 16*2},
+		{UnixSec: 3 + 16*2, V: 3 + 16*2},
+		{UnixSec: 9 + 16*2, V: 9 + 16*2},
+		{UnixSec: 11 + 16*2, V: 11 + 16*2},
+	}
+	nowUnixSec = 11 + 16*2
+	expected_n = 5
+	// records = { 26 }
+	for _, record := range expected_fps_2nd {
+		records.Add(record.UnixSec, record.V)
+	}
+	statSess.GetFpsFrom(&records, nowUnixSec)
+
+	// {32, 33, 35, 41, 26}
+	// 11 + 16*2 not complete
+	if len(statSess.Fps) != expected_n {
+		t.Fatalf("len(statSess.Fps) not match, got:%d expect:%d, %s",
+			len(statSess.Fps), expected_n, ringBufToStr(statSess.Fps))
+	}
+	funCmpRecord(0, &statSess.Fps[0], &expected_fps_2nd[0])
+	funCmpRecord(1, &statSess.Fps[1], &expected_fps_2nd[1])
+	funCmpRecord(2, &statSess.Fps[2], &expected_fps_2nd[2])
+	funCmpRecord(3, &statSess.Fps[3], &expected_fps_2nd[3])
+	funCmpRecord(4, &statSess.Fps[4], &expected_fps[7])
+
+	t.Log(ringBufToStr(statSess.Fps))
+
+	t.Log("3rd period record test")
+
+	expected_fps = []RecordPerSec{
+		{UnixSec: 0 + 16*3, V: 10 + 16*3},
+		{UnixSec: 1 + 16*3, V: 11 + 16*3},
+		{UnixSec: 3 + 16*3, V: 13 + 16*3},
+	}
+	nowUnixSec = 3 + 16*3 + 1
+	expected_n = 4
+
+	// records = { 11 + 16*2 }
+	for _, record := range expected_fps {
+		records.Add(record.UnixSec, record.V)
+	}
+	statSess.GetFpsFrom(&records, nowUnixSec)
+
+	if len(statSess.Fps) != expected_n {
+		t.Fatalf("len(statSess.Fps) not match, got:%d expect:%d, %s",
+			len(statSess.Fps), expected_n, ringBufToStr(statSess.Fps))
+	}
+
+	funCmpRecord(0, &statSess.Fps[0], &expected_fps[0])
+	funCmpRecord(1, &statSess.Fps[1], &expected_fps[1])
+	funCmpRecord(2, &statSess.Fps[2], &expected_fps[2])
+	funCmpRecord(3, &statSess.Fps[3], &expected_fps_2nd[4])
+	t.Log(ringBufToStr(statSess.Fps))
+}
diff --git a/pkg/logic/group__.go b/pkg/logic/group__.go
index dc4e18d..c9d9e90 100644
--- a/pkg/logic/group__.go
+++ b/pkg/logic/group__.go
@@ -12,6 +12,7 @@ import (
 	"encoding/json"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/q191201771/lal/pkg/gb28181"
 
@@ -135,6 +136,8 @@ type Group struct {
 	//
 	stat base.StatGroup
 	//
+	inVideoFpsRecords base.PeriodRecord
+	//
 	hlsCalcSessionStatIntervalSec uint32
 	//
 	psPubDumpFile    *base.DumpFile
@@ -166,6 +169,7 @@ func NewGroup(appName string, streamName string, config *Config, option GroupOpt
 		httpflvGopCache:            remux.NewGopCache("httpflv", uk, config.HttpflvConfig.GopNum, config.HttpflvConfig.SingleGopMaxFrameNum),
 		httptsGopCache:             remux.NewGopCacheMpegts(uk, config.HttptsConfig.GopNum, config.HttptsConfig.SingleGopMaxFrameNum),
 		psPubPrevInactiveCheckTick: -1,
+		inVideoFpsRecords:          base.NewPeriodRecord(32),
 	}
 
 	g.hlsCalcSessionStatIntervalSec = uint32(config.HlsConfig.FragmentDurationMs / 100) // equals to (ms/1000) * 10
@@ -275,6 +279,7 @@ func (group *Group) GetStat(maxsub int) base.StatGroup {
 
 	if group.rtmpPubSession != nil {
 		group.stat.StatPub = base.Session2StatPub(group.rtmpPubSession)
+		group.stat.GetFpsFrom(&group.inVideoFpsRecords, time.Now().Unix())
 	} else if group.rtspPubSession != nil {
 		group.stat.StatPub = base.Session2StatPub(group.rtspPubSession)
 	} else if group.psPubSession != nil {
diff --git a/pkg/logic/group__core_streaming.go b/pkg/logic/group__core_streaming.go
index df8b46a..e7a1af5 100644
--- a/pkg/logic/group__core_streaming.go
+++ b/pkg/logic/group__core_streaming.go
@@ -450,6 +450,9 @@ func (group *Group) broadcastByRtmpMsg(msg base.RtmpMsg) {
 			}
 		}
 	}
+	if msg.Header.MsgTypeId == base.RtmpTypeIdVideo {
+		group.inVideoFpsRecords.Add(nazalog.Clock.Now().Unix(), 1)
+	}
 }
 
 // ---------------------------------------------------------------------------------------------------------------------
diff --git a/pkg/logic/group__relay_pull.go b/pkg/logic/group__relay_pull.go
index c4d1182..b68f30d 100644
--- a/pkg/logic/group__relay_pull.go
+++ b/pkg/logic/group__relay_pull.go
@@ -11,11 +11,12 @@ package logic
 import (
 	"errors"
 	"fmt"
+	"strings"
+	"time"
+
 	"github.com/q191201771/lal/pkg/base"
 	"github.com/q191201771/lal/pkg/rtsp"
 	"github.com/q191201771/naza/pkg/nazalog"
-	"strings"
-	"time"
 
 	"github.com/q191201771/lal/pkg/rtmp"
 )
@@ -117,6 +118,7 @@ func (group *Group) resetRelayPullSession() {
 
 func (group *Group) getStatPull() base.StatPull {
 	if group.pullProxy.rtmpSession != nil {
+		group.stat.GetFpsFrom(&group.inVideoFpsRecords, time.Now().Unix())
 		return base.Session2StatPull(group.pullProxy.rtmpSession)
 	}
 	if group.pullProxy.rtspSession != nil {