diff --git a/interfaces/kits/gfx_utils/diagram/common/paint.h b/interfaces/kits/gfx_utils/diagram/common/paint.h
index 8119ae8..1af0a64 100644
--- a/interfaces/kits/gfx_utils/diagram/common/paint.h
+++ b/interfaces/kits/gfx_utils/diagram/common/paint.h
@@ -811,7 +811,7 @@ public:
     {
         this->scaleRadioX_ *= scaleX;
         this->scaleRadioY_ *= scaleX;
-        if (rotateAngle_ > 0.0 || rotateAngle_ < 0) {
+        if (rotateAngle_ > 0.0f || rotateAngle_ < 0) {
             transfrom_.Rotate(-rotateAngle_ * PI / BOXER);
             transfrom_.Scale(scaleX, scaleY);
             transfrom_.Rotate(rotateAngle_ * PI / BOXER);
diff --git a/interfaces/kits/gfx_utils/diagram/spancolorfill/fill_gradient_lut.h b/interfaces/kits/gfx_utils/diagram/spancolorfill/fill_gradient_lut.h
index 6bb3649..090551e 100644
--- a/interfaces/kits/gfx_utils/diagram/spancolorfill/fill_gradient_lut.h
+++ b/interfaces/kits/gfx_utils/diagram/spancolorfill/fill_gradient_lut.h
@@ -145,11 +145,11 @@ private:
         ColorPoint(float offsetValue, const Rgba8T& colorValue)
             : offset(offsetValue), color(colorValue)
         {
-            if (offset < 0.0) {
-                offset = 0.0;
+            if (offset < 0.0f) {
+                offset = 0.0f;
             }
-            if (offset > 1.0) {
-                offset = 1.0;
+            if (offset > 1.0f) {
+                offset = 1.0f;
             }
         }
     };
diff --git a/interfaces/kits/gfx_utils/graphic_math.h b/interfaces/kits/gfx_utils/graphic_math.h
index c4a707b..a4e9fea 100644
--- a/interfaces/kits/gfx_utils/graphic_math.h
+++ b/interfaces/kits/gfx_utils/graphic_math.h
@@ -57,9 +57,9 @@ namespace OHOS {
  */
 #define MATH_MINUS(a, b) ((a) < (b) ? ((b) - (a)) : ((a) - (b)))
 
-#define MATH_ROUND(x) ((x) > 0 ? (int16_t)((x) + 0.5) : (int16_t)((x) - 0.5))
+#define MATH_ROUND(x) ((x) > 0 ? (int16_t)((x) + 0.5f) : (int16_t)((x) - 0.5f))
 
-#define MATH_ROUND32(x) ((x) > 0 ? (int32_t)((x) + 0.5) : (int32_t)((x) - 0.5))
+#define MATH_ROUND32(x) ((x) > 0 ? (int32_t)((x) + 0.5f) : (int32_t)((x) - 0.5f))
 
 #define MATH_UROUND MATH_ROUND32
 
@@ -945,16 +945,16 @@ Matrix4<T> Matrix4<T>::Shear(const Vector2<T>& shearX, const Vector2<T>& shearY,
 
 inline int64_t FloatToInt64(float f)
 {
-    if (f > 127.0) { // 127.0: 2^7
+    if (f > 127.0f) { // 127.0: 2^7
         return 0x7FFF;
     }
 
-    if (f < -127.0) { // 127.0: 2^7
+    if (f < -127.0f) { // 127.0: 2^7
         return -0x7FFF;
     }
 
     // 256.0: 2^8 left move 8 bit. 0.5: round up
-    return static_cast<int64_t>(f * 256.0 + ((f < 0) ? -0.5 : 0.5));
+    return static_cast<int64_t>(f * 256.0f + ((f < 0) ? -0.5f : 0.5f));
 }
 
 inline bool FloatEqual(float lhs, float rhs, float precision = 0.00001f)
diff --git a/interfaces/kits/gfx_utils/trans_affine.h b/interfaces/kits/gfx_utils/trans_affine.h
index fd20b60..281629a 100644
--- a/interfaces/kits/gfx_utils/trans_affine.h
+++ b/interfaces/kits/gfx_utils/trans_affine.h
@@ -156,7 +156,7 @@ public:
         if (reciprocal == 0) {
             return VERTEX_DIST_EPSILON;
         }
-        return 1.0 / reciprocal;
+        return 1.0f / reciprocal;
     }
 
     /**