Abstract: This paper introduces the all phase autonomous quick rendezvous and docking technology and in orbit verification of Tianzhou 2 cargo spacecraft in China. First, two trends of rendezvous and docking development since the 21st century are introduced: autonomous and quick. Then, the all phase autonomous quick rendezvous and docking scheme of Tianzhou 2 cargo spacecraft and its main technical characteristics are given. Finally, the implementation plan of 5~8 h flight control of Tianzhou 2 cargo spacecraft and the implementation plan of flight control of one day delayed launch are presented, as well as the in orbit verification effect. The autonomous quick rendezvous and docking of Tianzhou 2 cargo spacecraft in orbit is the first fully autonomous quick rendezvous mission in the world, which laid a solid technological foundation for the Chinese space station project.

Key words: cargo spacecraft, all phase, autonomous, quick rendezvous and docking, in orbit verification