Abstract: In the context of microgrid trading in electricity market as a single market member,this paper proposes a coordination strategy of battery energy storage system（BESS）and direct load control（DLC）to suppress tie line power fluctuation of microgrid considering the energy-storage characteristic of the controlled load.By regarding DLC as a behavior of energy storage resource control,a DLC model based on the energy-storage characteristic of load is developed.Then the shortterm trading behavior of microgrid is optimized based on the effect of DLC to get maximum economic benefit.On the principle of economic benefit without affecting customer experience in energy consuming,this paper proposes a control scheme to completely suppress tie line power fluctuation of microgrid based on power allocation strategy which considers the operating state of load.Finally,the validity of the proposed approach is verified by the simulation result.