A smart environment monitoring system display device, comprising a shell, a display screen and a control main board in the shell, a plurality of interfaces are arranged on the control main board, a plurality of interfaces with corresponding interfaces are arranged on the shell, and a recess is arranged on the back side of the shell, the said interfaces are arranged on the upper cavity wall of the recess. The lower cavity wall is provided with a plurality of through-hole slots corresponding to the number of each interface, and the lower cavity wall is provided with a resilient baffle structure corresponding to each through-hole slot to provide for the corresponding data line to be squeezed through and prevented from being disengaged from the through-hole slot.