The utility model discloses an integrated control device for auxiliary control systems of an ultra-high-voltage converter station. The integrated control device comprises an auxiliary system control sub-station, network communication equipment, an auxiliary interface module and front-end equipment, wherein the auxiliary system control sub-station, the network communication equipment, the auxiliary interface module and the front-end equipment are connected in sequence. The integrated control device has high practicability, is optimization and integration made on the basis of the technological level of the existing equipment, can be used for effectively realizing function integration, information sharing and configuration simplifying for sub projects of all the auxiliary control systems and reducing the workload of maintenance personnel in the later period, and meets the requirements for safe operation and lifecycle management concept of an ultra-high-voltage direct-current power transmission system.