diff --git a/en/option/partial/strictly-aligned.md b/en/option/partial/strictly-aligned.md
new file mode 100644
index 00000000..51a78446
--- /dev/null
+++ b/en/option/partial/strictly-aligned.md
@@ -0,0 +1,12 @@
+
+{{ target: partial-strictly-aligned }}
+
+## strictlyAligned(boolean) = false
+
+{{ use: partial-version(
+    version = '5.2.0'
+) }}
+
+force straight lines to align. It is valid with [coordinateSystem](~series-heatmap.coordinateSystem) of 'cartesian2d' value.
+
+<ExampleUIControlEnum options="false,true" />
diff --git a/en/option/series/heatmap.md b/en/option/series/heatmap.md
index d0326aa9..872a8c8b 100644
--- a/en/option/series/heatmap.md
+++ b/en/option/series/heatmap.md
@@ -112,6 +112,10 @@ Configurations of select state. Available when [selectedMode](~series-heatmap.se
     version = '5.0.0'
 ) }}
 
+## strictlyAligned(boolean) = false
+
+{{ use: partial-strictly-aligned() }}
+
 ## data(Array)
 
 {{ use: partial-2d-data-desc() }}
diff --git a/zh/option/partial/strictly-aligned.md b/zh/option/partial/strictly-aligned.md
new file mode 100644
index 00000000..326a557e
--- /dev/null
+++ b/zh/option/partial/strictly-aligned.md
@@ -0,0 +1,12 @@
+
+{{ target: partial-strictly-aligned }}
+
+## strictlyAligned(boolean) = false
+
+{{ use: partial-version(
+    version = '5.2.0'
+) }}
+
+强制线条对齐，在笛卡尔坐标系([coordinateSystem](~series-heatmap.coordinateSystem): 'cartesian2d')上有效。
+
+<ExampleUIControlEnum options="false,true" />
diff --git a/zh/option/series/heatmap.md b/zh/option/series/heatmap.md
index a4dc1c76..4eed5c03 100644
--- a/zh/option/series/heatmap.md
+++ b/zh/option/series/heatmap.md
@@ -163,6 +163,10 @@ option = {
     version = '5.0.0'
 ) }}
 
+## strictlyAligned(boolean) = false
+
+{{ use: partial-strictly-aligned }}
+
 ## data(Array)
 
 {{ use: partial-2d-data-desc() }}