The invention discloses a cascade navigation-power junction optimal scheduling system with heterogeneous modules using standardized communication, and belongs to the field of hydraulic engineering scheduling. The cascade navigation-power junction optimal scheduling system with the heterogeneous modules using standardized communication comprises a one-directional module, a zero-dimensional module, a two-dimensional module, a communication module, a judgment module and an operation module, and data which are standardized are transferred among the modules according to a certain rules. The cascade navigation-power junction optimal scheduling system with the heterogeneous modules using standardized communication can achieve synchronous calculation of hydraulic elements of sections of the whole channel, the requirements of cascade navigation junction united scheduling for high calculation accuracy of the channel water level and the flow velocity of an entrance area are met, and due to the fact that calling, between different dimensions, of the standardized packaging data is carried out, flow conditions of the entrance and an approach channel are improved after reservoir scheduling is carried out, the power generation strategy is optimized, and maximization of the benefit of comprehensive utilization of cascade navigation and power generation is achieved.