The invention relates to a hybrid simulation interface management module based on PSCAD (Power System Computer Aided Design) EMTDC (Electromagnetic Transients including DC), which is characterized in that the hybrid simulation interface management module is arranged in PSCAD EMTDC software, an electromagnetic transient side data measurement module is used for acquiring a power data structure and a current data structure at a network dividing interface of two subnets and sending the acquired data structures to an interface core module; an electromechanical transient side data measurement module is used for acquiring a power-angle calculation reference value of generators in the whole network, and a network node voltage data structure and an injection network current data structure obtained in each electromechanical transient interaction step at a network dividing interface of an electromagnetic transient side subnet and an electromechanical transient side subnet, and sending the acquired data to the interface core module; the interface core module is used for the control on a simulation process, and realizing the joint simulation of an electromagnetic transient process and an electromechanical transient process.