In order to promote the absorption of intermittent energy, an optimal dispatching strategy with dynamic adjustment of controllable load is proposed for active distribution network dispatching. By dynamically adjusting the access point of the controllable load and taking the minimum operating cost of active distribution network as the objective function, an optimal scheduling model is established. This takes the dynamic regulation of the controllable load into account. A dynamic group search optimization algorithm is used to solve the model, and intermittent energy absorption rate is introduced as the basis to evaluate the absorption. Based on the improved IEEE33 node system, the simulation results show that the optimal scheduling strategy with dynamic adjustment of controllable load is feasible, and the strategy can effectively improve the absorption capacity of an active distribution network to intermittent energy. This work is supported by the Fundamental Research Funds for Central Universities (No. 22120200230) and the Science and Technology Project of Inner Mongolia Electric Power (Group) Co., Ltd. (No. 2018-47).