A multi sensor data synchronous acquisition system was designed for road survey. A PIC24 family microcontroller is used as the control core, combined with GPS and high stability quartz crystal to establish highprecision time reference. Accelerometer is used to acquire the acceleration, and laser range finder is used to acquire the distance in the vertical direction during vehicle travel. Road surface images can be collected by monochrome camera and road landscape images can be collected by color camera. Time is used as a link to achieve a high precision synchronization of multiple sensor data. Experiments show that the system has good realtime performance, high precision and stability. It can realize the synchronous acquisition of road pavement and landscape images. It provides high precision raw sensor data for road surface crack detection and pavement roughness calculation.