The piezoelectric film sensor is affected by temperature and the piezoelectric quartz sensor is expensive. Thus,a fusion design method is achieved by embedding two piezoelectric quartz sensors into fourrow piezoelectric film sensors. The equivalent installation model and temperature compensation algorithm of piezoelectric film sensor are estabilished. The piezoelectric quartz sensors are used to perform accurate and real time temperature compensation for all piezoelectric film sensors. Under the excitation of sinusoidal wave pavement, a quarter vehicle model is selected to conduct weighinmotion simulation experiment in MATLAB. In the experiments, the vehicle speed is ranged from 10 to 120 km/h and the environment temperature shifts from 0 to 40℃. The results show that weighing error mean value of fusion design is less than 097%, and accuracy is over 23 times than fourrow piezoelectric film sensors, and price is 3 times lower than fourrow piezoelectric quartz sensors. This design can realize high precision and low cost detection for vehicle weighinmotion, which shows good prospects for engineering applications.