With the expansion of space applications,satellite laser communication has been widely used due to its advantages in speed,bandwidth,volume,weight,and power consumption. For satellite optical communications,the performance of the terminal optical system directly affects the reliability and stability of communications. According to the requirements of the transceiver integration and two way duplex working mode in laser communication,the 830 nm laser communication terminal optical system design was completed with Code V software. The object field of view was 15 mrad,the full field of view MTF value was >0.65@100 lp/mm,and the light exit angle was limited to not less than 8° . The design results met the requirements of the system. Through the research on the stray light analysis and suppression technology of the optical system,the suppression ability of the off axis stray light (5°～20°) is controlled to be greater than 45 dB and be greater than 60 dB at the off axis 20°. The optical path diagram of the 830 nm laser communication terminal optical system is given and the stray light range and suppression ability of the system are tested. The test results are consistent with the simulation results and meet the requirements of the satellite laser communication system.