Abstract:For the needs of China’s solar boundary exploration, a proposal of using laser links with high speed information transmission to the ground is offered. Firstly, the foreign development status of deep space laser communication is processed. The characteristics of laser link and constraints for solar boundary exploration are analyzed secondly. Then, the preliminary proposal with key parameters of spacecraft laser communication terminal and optical ground station is offered. Besides, the link budget and impact factor are analyzed. At last, the developments of laser communication for China’s solar boundary exploration are described. The research will provide the reference for further demonstration and implementation of laser communication for China’s solar boundary exploration.