The invention relates to a method for regulating and controlling a reconfigurable static reactive compensation/DC ice-melting composite apparatus, wherein a complete set of controller completes the judgment of operation mode based on the difference of the primary equipment wire connection, and implements the whole switch of analog acquisition, triggering synchronization, tactical control and regulation, and the tactical regulation uses various regulation methods based on the operation mode. combined regulation control of the reconfigurable power electronic device with two different operation modes is implemented, and the complete set of regulation control policy method is completed on a same control hardware platform, which ensure the method be stabile and reliable as well as save hardware cost.