Expanding peripheral integrated circuits and adopting Windows CE as operation platform, the system uses S3C2410 processor as the core, using method combined with ADOCE3.1 and SQL Server 2.0 to design the damaged road maintenance standards database, which consists of the ultrasonic sensor acquisition of specific information of road surface. According to the road surface information through the IIC interface, the system platform gives the specific repairing scheme based on the road maintenance database standard.