Cold atom physics involves the quantum properties of cold materials and has a wide range of applications in the fields of precision measurement and quantum information. In the past two decades, cold atom physics has been the frontier and cross-disciplinary field of physics. The Group of Cold Atom Physics(GCAP) is one of the research groups that carried out cold atom physics research earlier in China. In recent years, the group has carried out the research on single atom, atom chip, atom interferometer & application, quantum information, precision measurement physics, realized laser trapping of a single atom in the detuned optical trap and the rotation of the single-atom array, the first cold atom interferometer in China, the observation of the Earth's tides using atom gravimeter. The GCAP has 20 faults, 2 postdocs, and 29 graduate students.