Abstract: As the nerve center of high-speed railway, signal system is the key to ensure the safety of high-speed railway operation and improve transportation efficiency. High-speed railway signal system puts forward higher requirements in the intelligent and collaborative aspects of train operation control and traffic control. This paper expounded the design concept of the integration of high-speed railway train operation control and dispatching command, introduced the basic functions of the integrated system, designed and studied the system architecture, subsystem architecture and system interface.