The integrated laser tester is developed in order to reduce the complexity of parameters test of laser range finder.The system is composed of data acquisition,signal generation,measuring modules,etc.A high performance-computing module is embedded into the tester which is controlled by the software.The measurement,computing,display and storage of all parameters are realized.The laser tester can simplify the process of parameters test of laser range finder,and can complete the operation rapidly,accurately and automatically by practice.