An LED display screen, includes: a frame, modules disposed at a side of the frame and including an LED light board, and a non-display surface of the LED light board is provided with a first socket configured to be connected with a board-to-board connector; and a power box disposed inside the frame and located between the modules, with a control board connected with the LED light board via the board-to-board connector; wherein the control board comprises a main control board and at least one sub-control board, a surface of the sub-control board facing a surface of the LED light board is provided with a second socket configured to match with the first socket, each of the sub-control boards is fixed by an elastic mechanism and a bottom surface of the power box opposite to the LED light board.