The significant increase of the air-conditioning load reduces the operation security margin of distribution network. The air-conditioning load aggregator has become an emerging business mode to participate in the decentralized thermostatically controllable load(TCL). This paper proposes a model integrating TCL and distribution network reconfiguration with the participation of air-conditioning load aggregators. The operation mode adjustment and the load response adjustment are both used for the system safety operation. The centralized management of dispersed thermostatic loads is conducted by different air-conditioning load aggregators through air-conditioning load regulation protocol

and the market interest is gained by way of piecewise bidding. Aiming at minimizing the settlement cost

the distribution company plans the multi-period reconfiguration and load control strategies. The constraint conditions are relaxed by the convex programming

and the mixed integer second-order cone programming model is solved by Mosek to guarantee the computational efficiency of the strategy. The applicability and effectiveness of the proposed method are verified by an improved IEEE 33-bus system.