The present invention discloses a multi-time-scale active-reactive control method for a multi-source coordinated active distribution network. The method comprises the following steps: (1) wind power,photovoltaic and load power sequences are predicted; (2) uncertain sampling of the source-load prediction error is performed to obtain a scene set covering the entire sampling space; (3) the scene isreduced by the synchronous back substitution reduction technology and a typical scene set is obtained; (4) in a long-time-scale scheduling phase, a control solution for adjusting the device with a limited adjustment times and the charge and discharge state of energy storage are obtained; (5) in a short-time-scale scheduling phase, scheduling instructions for quickly continuously adjusting devicesare solved; (6) in a real-time control phase, the adjustable devices are sequentially adjusted based on the sensitivity analysis of the node voltage so that the safe and stable operation of the powernetwork is ensured. By using the method of the present invention, the coordinated optimization operation of the adjustable devices in the active distribution network and full consumption and efficientutilization of the renewable energy can be realized.