The SpaceX Starlink satellite has approached the Chinese Space Station twice this year, and China has implemented emergency collision avoidance. According to a report from Global Network, according to documents released by the official website of the United Nations Committee on the Peaceful Uses of Outer Space, the Permanent Mission of China to the United Nations (Vienna) submitted a note verbale to the United Nations Secretary-General in early December stating that the Starlink satellite launched by the U.S. Space Exploration Technology Corporation (Spacex) has approached the Chinese Space Station twice this year, posing a danger to the life and health of the astronauts on board the Chinese Space Station. For safety reasons, the Chinese space station complex carried out emergency collision avoidance twice against relevant U.S. satellites. The note stated that China's manned space program carried out five launch missions in 2021, successfully launching the Tianhe core module of the space station, the Tianzhou-2 and Tianzhou-3 cargo spacecraft, and the Shenzhou-12 and Shenzhou-13 manned spacecraft into orbit. The Chinese space station complex operates stably in a near-circular Earth orbit at an altitude of approximately 390 kilometers, with an orbital inclination of approximately 41.5 . During this period, the StarLink satellite launched by the US Space Exploration Technology Company (SpaceX) approached the Chinese space station twice. For safety reasons, the space station complex implemented preventive collision avoidance controls ( emergency collision avoidance ) on U.S. Starlink satellites on July 1 and October 21 respectively. The specific situation is as follows: The first emergency collision avoidance of the American Starlink-1095 satellite has been operating stably in an orbit with an average altitude of approximately 555 kilometers since April 19, 2020. From May 16 to June 24, 2021, the satellite continued to maneuver down its orbit to an average orbital altitude of 382 kilometers, and then maintained its operation at this orbital altitude. On July 1, a close approach occurred between the satellite and the Chinese space station. For safety reasons, the Chinese Space Station took the initiative to avoid collision on the evening of July 1, avoiding the risk of collision between the two targets. The second emergency collision avoidance event occurred on October 21, 2021, when the American Starlink-2305 satellite had a close approach with the Chinese space station. Since the satellite is in a continuous orbital maneuvering state, the maneuvering strategy is unknown and the orbital error cannot be assessed, and there is a risk of collision with the space station. In order to ensure the safety of astronauts in orbit, the Chinese Space Station once again implemented emergency collision avoidance that day, avoiding the risk of collision between the two targets. IT House learned that the note pointed out that China requested the Secretary-General of the United Nations to inform the parties to the Outer Space Treaty about the above situation, and drew the attention of the parties to the Outer Space Treaty. According to Article 6 of the Outer Space Treaty, Each party to the Outer Space Treaty must bear international responsibility for its (whether governmental departments or non-governmental organizations) activities in outer space (including the moon and other celestial bodies), and should be responsible for ensuring that the implementation of its activities complies with the provisions of this treaty