The present invention provides a complex distribution network multi-time-scale digital-analog hybrid simulation system and a simulation method therefor, and aims to solve problems of multi-time-scale modeling and simulation of the existing complex distribution network and simulation precision and efficiency of the complex distribution network. The present invention proposes a complex distribution multi-time-scale digital-analog hybrid simulation scheme, and designs a digital-analog hybrid interface apparatus and a coordination mechanism, so that multi-time-scale real-time simulation of complex distribution network devices (such as a power electronic device containing a complex topology structure and a novel control structure and a novel control policy) and multi-time-scale simulation analysis that contains a distributed power source, such as a fan, a photovoltaic device and a combustion turbine, and an electric vehicle connected/disconnected to a network and that has an interactive effect on the distribution network. The method provided by the present invention is capable of promoting the development of the cutting-edge new technology of the new-generation distribution network, improving the level of distribution network operation control and analysis, and providing more powerful, longer-term and deeper support for power grid production, running and management from the angles of distribution network planning, designing, operation regulating and the like.