The invention provides a mixing method of movement authorities during train zone switching. The mixing method comprises mixing of movement authorities of a transfer ZC (Zone Controller) and mixing of movement authorities of a takeover ZC; the movement authority mixing mode is based on a co-administration zone idea, the state of mixed MA (Movement Authority) wayside equipment is determined by combining the MA1 calculated by the transfer ZC and the MA2 calculated by the takeover ZC after the MA mixing destination is determined, so that the state change of the equipment in the co-administration area can be monitored in real time when the transfer ZC and the takeover ZC calculate corresponding mixed MAs, and therefore the response time of a system on equipment fault is prolonged; and the MA of the transfer ZC and the MA of the takeover ZC, which are generated for a train, are consistent, so that the situation that the train is suddenly decelerated, even emergently braked is avoided, and therefore the system safety is ensured.