Abstract: DC circuit breaker (DCCB) is the core equipment of DC transmission system, and it is necessary to design a DCCB with reclosing function and relatively low cost which can quickly cut off the fault current and reduce the energy absorption of arrester. In this paper, a hybrid DC circuit breaker based on capacitor commutation (CC-HDCCB) topology is proposed, and the CC-HDCCB topology can effectively reduce the conduction loss of DC circuit breaker. The main branch mechanical switch breaks under zero current and zero voltage, which significantly reduces the breaking pressure of the mechanical switch. By using the symmetry of capacitor commutation module, only two groups of thyristors are used to realize bidirectional fault current breaking and reclosing function, which has the advantages of fast breaking speed, high reliability, low requirement for devices and small energy absorption of arrester. In this paper, the working principle of CC-HDCCB is studied and analyzed, and a general CC-HDCCB parameter design process is proposed. Finally, simulation verification is carried out by the PSCAD/EMTD. The simulation results show that the voltage and current of each device in CC-HDCCB topology is relatively low. Compared with related circuit breakers, the CC-HDCCB topology has lower breaking pressure and arrester energy absorption pressure, which verifies the rationality and economy of the proposed structure.