Abstract: In the automobile manufacturing industry, the precision of the body-in-white skeleton has a great impact on the size and quality of the whole vehicle.As a comprehensive matching sample frame, PCF provides a fast and effective solution to analyze the matching problem of sheet metal parts, improve the quality of sheet metal parts, speed up the debugging progress of BIW skeleton fixture, and then provides an effective guarantee for the accuracy of BIW skeleton, so PCF matching work occupies an important position in the vehicle dimension quality control strategy.