Laser communication will become an important technology means of future satellite communication, especially inter satellite communication, because of its advantages in transmission distance, transmission capacity, confidentiality and anti-interference. However, due to the high speed movement of satellite, the high dynamic satellite laser networking based on laser link will face a series of key technical challenges. This paper summarizes the development status of satellite laser communication technology, introduces the architecture of software-defined satellite laser networks, and analyzes the key technologies for highly dynamic satellite laser networking, and the development direction of satellite laser networking technology is predicted.