diff --git a/shortcuts/sheets/data/flag-defs.json b/shortcuts/sheets/data/flag-defs.json
index 2bffe8740..bdb839ee9 100644
--- a/shortcuts/sheets/data/flag-defs.json
+++ b/shortcuts/sheets/data/flag-defs.json
@@ -3359,7 +3359,7 @@
         "kind": "own",
         "type": "string",
         "required": "required",
-        "desc": "One contiguous A1 range including headers, or comma-separated aligned ranges preserved as independent refs without gap columns"
+        "desc": "One contiguous A1 range including headers, or comma-separated same-sheet ranges; aligned non-overlapping ranges stay independent, otherwise they merge to the smallest enclosing rectangle"
       },
       {
         "name": "data-direction",
diff --git a/shortcuts/sheets/flag_defs_gen.go b/shortcuts/sheets/flag_defs_gen.go
index 52c8fa7de..a74e1ead6 100644
--- a/shortcuts/sheets/flag_defs_gen.go
+++ b/shortcuts/sheets/flag_defs_gen.go
@@ -246,7 +246,7 @@ var flagDefs = map[string]commandDef{
 			{Name: "sheet-id", Kind: "public", Type: "string", Required: "xor", Desc: "Sheet reference_id (XOR with `--sheet-name`)"},
 			{Name: "sheet-name", Kind: "public", Type: "string", Required: "xor", Desc: "Sheet name (XOR with `--sheet-id`)"},
 			{Name: "chart-type", Kind: "own", Type: "string", Required: "required", Desc: "Chart type", Enum: []string{"column", "bar", "line", "area", "pie", "scatter", "combo", "radar"}},
-			{Name: "data-range", Kind: "own", Type: "string", Required: "required", Desc: "One contiguous A1 range including headers, or comma-separated aligned ranges preserved as independent refs without gap columns"},
+			{Name: "data-range", Kind: "own", Type: "string", Required: "required", Desc: "One contiguous A1 range including headers, or comma-separated same-sheet ranges; aligned non-overlapping ranges stay independent, otherwise they merge to the smallest enclosing rectangle"},
 			{Name: "data-direction", Kind: "own", Type: "string", Required: "optional", Desc: "Data series direction; column uses the first column as categories, row uses the first row", Default: "column", Enum: []string{"column", "row"}},
 			{Name: "title", Kind: "own", Type: "string", Required: "optional", Desc: "Chart title"},
 			{Name: "subtitle", Kind: "own", Type: "string", Required: "optional", Desc: "Chart subtitle"},
diff --git a/shortcuts/sheets/lark_sheet_chart.go b/shortcuts/sheets/lark_sheet_chart.go
index 8b91e5e65..f40da4785 100644
--- a/shortcuts/sheets/lark_sheet_chart.go
+++ b/shortcuts/sheets/lark_sheet_chart.go
@@ -6,6 +6,7 @@ package sheets
 import (
 	"context"
 	"regexp"
+	"strconv"
 	"strings"
 
 	"github.com/larksuite/cli/shortcuts/common"
@@ -151,7 +152,7 @@ func chartCreateBasicInput(rt flagView, token, sheetID, sheetName string) (map[s
 	if direction == "" {
 		direction = "column"
 	}
-	dimensionCount, dataPointCount, err := validateBasicChartDataRanges(dataRange, direction)
+	normalizedDataRange, dimensionCount, dataPointCount, err := normalizeBasicChartDataRanges(dataRange, direction)
 	if err != nil {
 		return nil, err
 	}
@@ -164,7 +165,7 @@ func chartCreateBasicInput(rt flagView, token, sheetID, sheetName string) (map[s
 
 	basic := map[string]interface{}{
 		"chart_type": chartType,
-		"data_range": dataRange,
+		"data_range": normalizedDataRange,
 	}
 	if rt.Changed("data-direction") {
 		basic["data_direction"] = rt.Str("data-direction")
@@ -250,56 +251,78 @@ type chartDataRange struct {
 	rowCount, colCount int
 }
 
-func validateBasicChartDataRanges(dataRange, direction string) (dimensionCount, dataPointCount int, err error) {
+func normalizeBasicChartDataRanges(dataRange, direction string) (normalized string, dimensionCount, dataPointCount int, err error) {
 	ranges, err := splitChartDataRanges(dataRange)
 	if err != nil {
-		return 0, 0, sheetsValidationForFlag("data-range", "invalid --data-range %q: %v", dataRange, err)
+		return "", 0, 0, sheetsValidationForFlag("data-range", "invalid --data-range %q: %v", dataRange, err)
 	}
 	parsed := make([]chartDataRange, 0, len(ranges))
 	for _, value := range ranges {
 		item, parseErr := parseChartDataRange(value)
 		if parseErr != nil {
-			return 0, 0, sheetsValidationForFlag("data-range", "invalid --data-range item %q: %v", value, parseErr)
+			return "", 0, 0, sheetsValidationForFlag("data-range", "invalid --data-range item %q: %v", value, parseErr)
 		}
 		parsed = append(parsed, item)
 	}
 	first := parsed[0]
 	explicitSheet := ""
 	spans := make([][2]int, 0, len(parsed))
+	aligned := true
+	minRow, minCol := first.row, first.col
+	maxRow, maxCol := first.row+first.rowCount, first.col+first.colCount
 	for _, item := range parsed {
 		if item.sheet != "" {
 			if explicitSheet != "" && item.sheet != explicitSheet {
-				return 0, 0, sheetsValidationForFlag("data-range", "all --data-range items must belong to the same sheet")
+				return "", 0, 0, sheetsValidationForFlag("data-range", "all --data-range items must belong to the same sheet")
 			}
 			explicitSheet = item.sheet
 		}
 		if direction == "row" {
 			if item.col != first.col || item.colCount != first.colCount {
-				return 0, 0, sheetsValidationForFlag("data-range", "all --data-range items must cover the same columns for --data-direction row")
+				aligned = false
 			}
 			dimensionCount += item.rowCount
 			spans = append(spans, [2]int{item.row, item.row + item.rowCount})
 		} else {
 			if item.row != first.row || item.rowCount != first.rowCount {
-				return 0, 0, sheetsValidationForFlag("data-range", "all --data-range items must cover the same rows for --data-direction column")
+				aligned = false
 			}
 			dimensionCount += item.colCount
 			spans = append(spans, [2]int{item.col, item.col + item.colCount})
 		}
+		minRow = min(minRow, item.row)
+		minCol = min(minCol, item.col)
+		maxRow = max(maxRow, item.row+item.rowCount)
+		maxCol = max(maxCol, item.col+item.colCount)
 	}
+	overlapping := false
 	for i, current := range spans {
 		for j := 0; j < i; j++ {
 			if current[0] < spans[j][1] && spans[j][0] < current[1] {
-				return 0, 0, sheetsValidationForFlag("data-range", "--data-range items must not overlap")
+				overlapping = true
 			}
 		}
 	}
+	normalized = strings.Join(ranges, ",")
+	if len(ranges) > 1 && (!aligned || overlapping) {
+		prefix := ""
+		if explicitSheet != "" {
+			prefix = explicitSheet + "!"
+		}
+		normalized = prefix + columnIndexToLetter(minCol) + strconv.Itoa(minRow+1) + ":" + columnIndexToLetter(maxCol-1) + strconv.Itoa(maxRow)
+		dimensionCount = maxCol - minCol
+		dataPointCount = maxRow - minRow
+		if direction == "row" {
+			dimensionCount, dataPointCount = dataPointCount, dimensionCount
+		}
+		return normalized, dimensionCount, dataPointCount, nil
+	}
 	if direction == "row" {
 		dataPointCount = first.colCount
 	} else {
 		dataPointCount = first.rowCount
 	}
-	return dimensionCount, dataPointCount, nil
+	return normalized, dimensionCount, dataPointCount, nil
 }
 
 func splitChartDataRanges(value string) ([]string, error) {
diff --git a/shortcuts/sheets/lark_sheet_chart_test.go b/shortcuts/sheets/lark_sheet_chart_test.go
index df0234c5f..276ee84b9 100644
--- a/shortcuts/sheets/lark_sheet_chart_test.go
+++ b/shortcuts/sheets/lark_sheet_chart_test.go
@@ -86,6 +86,49 @@ func TestChartCreateBasic_MultipleAlignedRanges(t *testing.T) {
 	}
 }
 
+func TestChartCreateBasic_MergesMisalignedOrOverlappingRanges(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name     string
+		input    string
+		expected string
+	}{
+		{name: "separated rows", input: "'Sheet1'!A1:M1,'Sheet1'!A3:M3", expected: "'Sheet1'!A1:M3"},
+		{name: "overlapping columns", input: "A1:B10,B1:C10", expected: "A1:C10"},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			body := parseDryRunBody(t, ChartCreateBasic, []string{
+				"--url", testURL,
+				"--sheet-id", testSheetID,
+				"--chart-type", "line",
+				"--data-range", tt.input,
+			})
+			input := decodeToolInput(t, body, "manage_chart_object")
+			basic := input["basic_chart"].(map[string]interface{})
+			if basic["data_range"] != tt.expected {
+				t.Fatalf("basic_chart.data_range = %v, want %q", basic["data_range"], tt.expected)
+			}
+		})
+	}
+}
+
+func TestChartCreateBasic_RejectsCrossSheetRanges(t *testing.T) {
+	t.Parallel()
+	_, _, err := runShortcutCapturingErr(t, ChartCreateBasic, []string{
+		"--url", testURL,
+		"--sheet-id", testSheetID,
+		"--chart-type", "line",
+		"--data-range", "'A'!A1:A10,'B'!C1:D10",
+	})
+	if err == nil {
+		t.Fatal("expected cross-sheet ranges to fail")
+	}
+}
+
 func TestChartSemanticShortcuts_InBatchUpdate(t *testing.T) {
 	body := parseDryRunBody(t, BatchUpdate, []string{
 		"--url", testURL,
diff --git a/skills/lark-sheets/references/lark-sheets-chart.md b/skills/lark-sheets/references/lark-sheets-chart.md
index f601f9ee1..5c5fbf76d 100644
--- a/skills/lark-sheets/references/lark-sheets-chart.md
+++ b/skills/lark-sheets/references/lark-sheets-chart.md
@@ -140,7 +140,7 @@ _公共四件套 · 系统：`--dry-run`_
 | Flag | Type | 必填 | 说明 |
 | --- | --- | --- | --- |
 | `--chart-type` | string | required | 图表类型（可选值：`column` / `bar` / `line` / `area` / `pie` / `scatter` / `combo` / `radar`） |
-| `--data-range` | string | required | 含表头的一个连续 A1 范围，或逗号分隔的多个对齐范围；多范围保留为独立引用，不包含中间间隔列 |
+| `--data-range` | string | required | 含表头的一个连续 A1 范围，或逗号分隔的同表多范围；对齐且不重叠时保留独立引用，否则合并为最小包围矩形 |
 | `--data-direction` | string | optional | 数据系列方向；column 表示首列为类别，row 表示首行为类别（可选值：`column` / `row`）（默认 `column`） |
 | `--title` | string | optional | 图表标题 |
 | `--subtitle` | string | optional | 图表副标题 |
@@ -233,7 +233,7 @@ _创建/更新的图表属性_
 
 ### `+chart-create-basic`
 
-首列自动作为维度，后续列作为数值系列。饼图只使用第二列数值；散点图以首列为 X、后续列为 Y；组合图以第二列为左轴柱，后续列为右轴折线。数据范围必须包含真实表头；如果类别列与数值列不连续，可以给 `--data-range` 传逗号分隔的多个对齐范围，例如 `"'Sheet1'!A1:A10,'Sheet1'!K1:L10"`。CLI 与服务端会保留为多个独立引用，不会把 B:J 的间隔列纳入图表。column 方向各范围必须覆盖相同行，row 方向必须覆盖相同列；如果数据子集的表头在范围外，改用高级 `+chart-create` 的 detached 模式。
+首列自动作为维度，后续列作为数值系列。饼图只使用第二列数值；散点图以首列为 X、后续列为 Y；组合图以第二列为左轴柱，后续列为右轴折线。数据范围必须包含真实表头；如果类别列与数值列不连续，可以给 `--data-range` 传逗号分隔的多个范围，例如 `"'Sheet1'!A1:A10,'Sheet1'!K1:L10"`。对齐且不重叠的范围会保留为独立引用，不会把 B:J 的间隔列纳入图表；错行、错列或重叠的范围会自动合并为同一工作表内的最小包围矩形。跨工作表范围仍会拒绝。如果数据子集的表头在范围外，改用高级 `+chart-create` 的 detached 模式。
 
 ```bash
 # 柱形图：默认放在数据范围右侧