For the wind power system with low wind power consumption level and peak valley difference, this paper proposes a bi-level interactive scheduling strategy that takes into account the characteristics of the power supply side and the load side. The strategy stratifies and models the source and load, considers the controllable load space-time adjustment ability under the incentive measures such as time-of-use price, optimizes the power supply combination with the minimum power generation cost, reduces the load peak-to-valley difference, and enhances the conventional unit to provide spinning reserve ability. The CPLEX is used to optimize the source-load bi-level interaction model. It is verified that the strategy can further improve the economical and adjustment ability of the power system operation under the premise of ensuring the stable operation of the power grid, and has good practicability. This work is supported by Science and Technology Support Xinjiang Project of the Xinjiang Uygur Autonomous Region (No. 2017E0277).