Abstract: Based on the measuring technique of local piezoelectricity and ferroelectricity,the difference of local piezoelectricity and ferroelectricity in P（VDF-TrFE） films with different crystallinity is studied.The experimental results showed that local ferroelectricity in amorphous phases can be characterized by a Rounded Butterfly Loop with a much higher coercive field,while local ferroelectricity in crystalline phases shows a sudden ferroelectric switching with a much lower coercive field.Local piezoelectric coefficient obtained from amorphous phases is about-0.15Å/V,which is a little lower than that obtained from crystalline phases（-0.30Å/V）.