Due to low absorption and negligible non-birefringent character in atmosphere, optical free space therefore serves as the most promising channel for large-scale quantum communication by use of satellites and optical ground stations. Quantum communication in space has become a new technological challenge in the evolving field of quantum communications. Its main goal is to achieve the distribution of single photons or entangled photon pairs from satellites to implement both quantum technologies such as quantum cryptography and fundamental quantum physics experiments. This article describes the equipment and features of the 1.2 m astronomical telescope which will perform experiments with quantum experiment satellite of China. The optical ground station uses 1.2 m gimbaled telescope to collect the photons, and the strategy of the system is slightly developed to meet the need of tracking LEO satellite, which has coarse and fine loop, and it can also control a transmitting and receiving laser beam within a few micro radians jitter. This telescope with multiple functions will play an important role in space-to-ground quantum communication.