The developing status，operating principle and technological superiority of streak tube LIDAR were introduced in the first place. Aiming at detection of target and surroundings under water，the parameters of LIDAR system were calculated，based on which a streak tube LIDAR prototype was developed. A number of multiple dimension images were acquired by means of test and experiment，and the optimizing method was presented for later work after the detector performance of prototype was evaluated. At last，the LIDAR application expectation was discusssed.