diff --git a/backend/go.mod b/backend/go.mod
index 9920b93..c6e959a 100644
--- a/backend/go.mod
+++ b/backend/go.mod
@@ -13,7 +13,7 @@ require (
 	github.com/labstack/echo/v4 v4.13.3
 	github.com/matoous/go-nanoid/v2 v2.1.0
 	github.com/redis/go-redis/v9 v9.7.3
-	github.com/spf13/cast v1.7.1
+	github.com/samber/lo v1.50.0
 	github.com/spf13/viper v1.20.1
 	go.uber.org/zap v1.27.0
 	golang.org/x/time v0.11.0
@@ -39,6 +39,7 @@ require (
 	github.com/sagikazarmark/locafero v0.7.0 // indirect
 	github.com/sourcegraph/conc v0.3.0 // indirect
 	github.com/spf13/afero v1.12.0 // indirect
+	github.com/spf13/cast v1.7.1 // indirect
 	github.com/spf13/pflag v1.0.6 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
diff --git a/backend/go.sum b/backend/go.sum
index 7646c2a..84940ed 100644
--- a/backend/go.sum
+++ b/backend/go.sum
@@ -59,6 +59,8 @@ github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHP
 github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
+github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/pelletier/go-toml/v2 v2.2.3 h1:YmeHyLY8mFWbdkNWwpr+qIL2bEqT0o95WSdkNHvL12M=
 github.com/pelletier/go-toml/v2 v2.2.3/go.mod h1:MfCQTFTvCcUyyvvwm1+G6H/jORL20Xlb6rzQu9GuUkc=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@@ -71,6 +73,8 @@ github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZV
 github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
 github.com/sagikazarmark/locafero v0.7.0 h1:5MqpDsTGNDhY8sGp0Aowyf0qKsPrhewaLSsFaodPcyo=
 github.com/sagikazarmark/locafero v0.7.0/go.mod h1:2za3Cg5rMaTMoG/2Ulr9AwtFaIppKXTRYnozin4aB5k=
+github.com/samber/lo v1.50.0 h1:XrG0xOeHs+4FQ8gJR97zDz5uOFMW7OwFWiFVzqopKgY=
+github.com/samber/lo v1.50.0/go.mod h1:RjZyNk6WSnUFRKK6EyOhsRJMqft3G+pg7dCWHQCWvsc=
 github.com/sourcegraph/conc v0.3.0 h1:OQTbbt6P72L20UqAkXXuLOj79LfEanQ+YQFNpLA9ySo=
 github.com/sourcegraph/conc v0.3.0/go.mod h1:Sdozi7LEKbFPqYX2/J+iBAM6HpqSLTASQIKqDmF7Mt0=
 github.com/spf13/afero v1.12.0 h1:UcOPyRBYczmFn6yvphxkn9ZEOY65cpwGKb5mL36mrqs=
@@ -111,8 +115,8 @@ golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
 google.golang.org/protobuf v1.36.5 h1:tPhr+woSbjfYvY6/GPufUoYizxw1cF/yFoxJ2fmpwlM=
 google.golang.org/protobuf v1.36.5/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
+gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
diff --git a/backend/internal/controllers/stat.go b/backend/internal/controllers/stat.go
index 3c992d0..31a5312 100644
--- a/backend/internal/controllers/stat.go
+++ b/backend/internal/controllers/stat.go
@@ -3,24 +3,66 @@ package controllers
 import (
 	"backend/internal/models"
 	"backend/internal/utils"
-	"strings"
+	"encoding/json"
+	"time"
 
+	"github.com/hibiken/asynq"
 	"github.com/labstack/echo/v4"
-	"github.com/spf13/cast"
+	"github.com/samber/lo"
 )
 
+type FileChartData struct {
+	FileSize int64  `json:"file_size"`
+	FileNum  int64  `json:"file_num"`
+	Date     string `json:"date"`
+}
+
 func GetStat(c echo.Context) error {
-	keys, err := models.GetRedisFileKeysAll()
+	fileInfoMap, err := models.GetRedisFileInfoAll()
 	if err != nil {
 		return utils.HTTPErrorHandler(c, err)
 	}
-	var filesSize int64
-	for _, key := range keys {
-		list := strings.Split(key, "_")
-		if len(list) > 1 {
-			filesSize += cast.ToInt64(list[1])
+	fileChartData := make(map[string]FileChartData)
+	for _, value := range fileInfoMap {
+		var fileInfo models.RedisFileInfo
+		err := json.Unmarshal([]byte(value), &fileInfo)
+		if err != nil {
+			return utils.HTTPErrorHandler(c, err)
+		}
+		if fileInfo.FileType != models.FileTypeUpload {
+			continue
+		}
+		if time.Unix(fileInfo.CreatedAt, 0).After(time.Now().Add(-30 * 24 * time.Hour)) {
+			dateKey := time.Unix(fileInfo.CreatedAt, 0).Format("2006-01-02")
+			if data, ok := fileChartData[dateKey]; ok {
+				fileChartData[dateKey] = FileChartData{
+					FileSize: data.FileSize + fileInfo.FileSize,
+					FileNum:  data.FileNum + 1,
+				}
+			} else {
+				fileChartData[dateKey] = FileChartData{
+					FileSize: fileInfo.FileSize,
+					FileNum:  1,
+				}
+			}
 		}
 	}
+	storageChartData := lo.Times(30, func(i int) FileChartData {
+		dateKey := time.Now().AddDate(0, 0, -i).Format("2006-01-02")
+		if data, ok := fileChartData[dateKey]; ok {
+			return FileChartData{
+				FileSize: data.FileSize,
+				FileNum:  data.FileNum,
+				Date:     dateKey,
+			}
+		}
+		return FileChartData{
+			FileSize: 0,
+			FileNum:  0,
+			Date:     dateKey,
+		}
+	})
+
 	queueInspector := utils.GetQueueInspector()
 	queues, err := queueInspector.History("default", 30)
 	if err != nil {
@@ -32,19 +74,26 @@ func GetStat(c echo.Context) error {
 		return utils.HTTPErrorHandler(c, err)
 	}
 
+	queueData := lo.Map(queues, func(item *asynq.DailyStats, _ int) map[string]any {
+		return map[string]any{
+			"date":      item.Date.Format("2006-01-02"),
+			"processed": item.Processed,
+			"failed":    item.Failed,
+		}
+	})
+
 	return utils.HTTPSuccessHandler(c, map[string]any{
 		"version": "0.1.0",
-		"total": map[string]any{
-			"file_size": filesSize,
-			"file_num":  len(keys),
-		},
-		"limit": map[string]any{
+		"max_limit": map[string]any{
 			"file_size": maxStorageSize,
 		},
 		"admin": map[string]any{
 			"user_name": utils.GetEnv("ADMIN_NAME"),
 			"email":     utils.GetEnv("ADMIN_EMAIL"),
 		},
-		"queue": queues,
+		"chart": map[string]any{
+			"storage": storageChartData,
+			"queue":   queueData,
+		},
 	})
 }
diff --git a/backend/internal/models/file.go b/backend/internal/models/file.go
index 4d144ef..fd8a985 100644
--- a/backend/internal/models/file.go
+++ b/backend/internal/models/file.go
@@ -59,7 +59,7 @@ func SetRedisFileInfo(fileId string, fileInfo RedisFileInfo) error {
 	return err
 }
 
-func GetRedisFileKeysAll() ([]string, error) {
+func GetRedisFileInfoAll() (map[string]string, error) {
 	rdb, ctx := utils.GetRedisClient()
-	return rdb.HKeys(ctx, "015:fileInfoMap").Result()
+	return rdb.HGetAll(ctx, "015:fileInfoMap").Result()
 }