The invention provides a system for weakening impact on a power grid. The system comprises a plurality of intelligent sockets which are connected with electrical equipment and a cell controller which is connected with each intelligent socket, wherein each intelligent socket comprises a receiving module which is used for receiving a turn-on instruction, a first communication module, a first microprocessor and a relay; the receiving module sends the received turn-on instruction to the cell controller through the first communication module; the first microprocessor receives a turn-on permission instruction which is sent by the cell controller through the first communication module and controls the relay to be switched on to turn on the electrical equipment; the cell controller comprises a second communication module and a second microprocessor; and the second microprocessor sequences the turn-on instructions which are received through the second communication module and sequentially returns the turn-on permission instructions to the corresponding intelligent sockets through the second communication module according to the sequence. By adoption of the technical scheme provided by the embodiment of the invention, the impact of simultaneous turn-on of a plurality of pieces of electrical equipment on the power grid is weakened.