diff --git a/README.md b/README.md
index 9aee1fd..f367cc7 100644
--- a/README.md
+++ b/README.md
@@ -157,7 +157,7 @@ Parameters:
   - `font_size_mode`: `fixed` uses the exact font size, `fit` scales text to the canvas
   - `font_size`: base font size or max fitting size
   - `char_spacing`: character spacing in pixels
-  - `line_spacing`: line spacing in pixels; `0` keeps the automatic spacing rule
+  - `line_spacing`: line spacing in pixels; `0` keeps the automatic spacing rule, positive values increase spacing, negative values pull lines closer together
   - `bold`: prefer bold font variants, otherwise use a fallback bold draw mode
   - `italic`: prefer italic font variants, otherwise use a fallback italic transform
   - `background_color`: preview background color
@@ -400,7 +400,7 @@ Baidu Meux ComfyTools 是一组用于 ComfyUI 的自定义节点，服务于百
   - `font_size_mode`：`fixed` 使用固定字号，`fit` 自动适配画布
   - `font_size`：基础字号，或自动适配时的最大字号
   - `char_spacing`：字符间距，单位为像素
-  - `line_spacing`：行间距，单位为像素；`0` 表示继续使用自动行间距规则
+  - `line_spacing`：行间距，单位为像素；`0` 表示继续使用自动行间距规则，正数拉开行距，负数压缩行距
   - `bold`：优先匹配粗体字体，没有时走伪粗体回退
   - `italic`：优先匹配斜体字体，没有时走伪斜体回退
   - `background_color`：预览背景颜色
diff --git a/nodes/artistic_text_preview.py b/nodes/artistic_text_preview.py
index e082e17..0f14588 100644
--- a/nodes/artistic_text_preview.py
+++ b/nodes/artistic_text_preview.py
@@ -40,7 +40,7 @@ class MeuxArtisticTextPreview:
                 "font_size_mode": (["fixed", "fit"], {"default": "fixed"}),
                 "font_size": ("INT", {"default": 128, "min": 8, "max": 1024, "step": 1}),
                 "char_spacing": ("INT", {"default": 0, "min": -20, "max": 200, "step": 1}),
-                "line_spacing": ("INT", {"default": 0, "min": 0, "max": 512, "step": 1}),
+                "line_spacing": ("INT", {"default": 0, "min": -512, "max": 512, "step": 1}),
                 "bold": ("BOOLEAN", {"default": False}),
                 "italic": ("BOOLEAN", {"default": False}),
                 "background_color": ("STRING", {"default": "#000000"}),
@@ -295,7 +295,7 @@ class MeuxArtisticTextPreview:
         return width, height
 
     def _resolve_line_spacing(self, font, line_spacing):
-        if int(line_spacing) > 0:
+        if int(line_spacing) != 0:
             return int(line_spacing)
         return max(6, font.size // 5 if hasattr(font, "size") else 6)