Abstract: The long distance, high speed dynamic target measurement was realized by using the synchronous inner triggering inertial-visual compound sensor. Synchronously trigger the high precision inertial sensor ADIS16355 and ordinary monocular camera, monocular camera can achieve binocular vision by changing position, rotating optical axis angle. It can effectively solve the location problem of the three dimensional space moving target. Laser keyboard is used to mark image initial frame, at the same time high signal is produced, then the signal and the odd/even field synchronous pulse signal separated from the camera video signal are outputted through the AND gate, the output is used to realize synchronous measurement as the interrupt signal. It can eliminate frame stagger or frame lost, the precision can reach microsecond. It provides a general solution for synchronous acquisition of inertial sensor and ordinary monocular camera.