Recycled polypropylene and wood powder were mixed together to make a composite.In this paper,the effects of the amount of wood powder,PP-g-MAH compatilizer and WBG crystalline phase modifier on the properties and morphologies of the composite were studied.The results indicated that PP-g-MAH compatilizer could improve the compatibility and properties of the composite.Suitable amount of wood powder was also helpful for the increase of composite tensile modulus,flexural property and heat distortion temperature, while it might decrease the impact strength and tensile elongation.The addition of WBG crystalline phase modifier improved the crystalline configuration and the plasticity of the composite.