Problem solved:
Texture file must be at the same folder as obj file.
Before i had textures in d:\textures - folder.
In .mtl was :map_Kd d:\textures\texture.png - its correct path, but 3D Sweet Home not load textures.
I change d:\textures\texture1.png to texture1.png and copy .mtl and .obj file to d:\textures - now it's work fine.
Thank you for help.