Abstract: A high efficiency laser active detection controlling and processing system based on LabVIEW was designed. The principle of system design was presented, as well as the basic construction and diagram of the system. The advantages of muti-thread and modulated designed method of LabVIEW such as function integrity, friendly user interface, strong extensibility, high efficiency and stability were discussed. Experiments were done using the system. The results show that using this system, the data could be acquired, processed and displayed visible in time, which could meet the need of laser active detection. The system designed provides a new way for laser active detection technology.