The invention relates to an electrical power system safety control simulation integrated platform and a simulation method thereof. The platform comprises a data distribution and merging calculation module, a transient stability simulation module with safety control strategy behaviors being taken into consideration, a static stability simulation module with safety control strategy behaviors being taken into consideration, and a safety control strategy simulation module. The simulation method comprises the following steps: data distribution and merging; transient simulation calculation; static simulation calculation; and script analysis and safety control strategy generation. Through the platform and the method, power grid operation and dispatching departments can simulate power grid safety control strategy logics and behaviors vividly; fault stability is analyzed, and trouble removal and revision of a fault set are realized; and accuracy of grid safety control simulation calculation is greatly improved.