Electrocardiogram monitoring device, medical transfer bed and use method of medical transfer bed

The invention discloses an electrocardiograph monitoring device for a medical transfer bed, and relates to the field of medical equipment, the electrocardiograph monitoring device comprises a main board, a power board, a main screen, a sensor module, a key module and a record storage module, the power board, the main screen, the sensor module, the key module and the record storage module are respectively connected with the main board, and the record storage module is connected with the main board. The electrocardiograph monitoring device further comprises a drawer-shaped shell and a metal supporting frame, the metal supporting frame is located in the drawer-shaped shell and divides the inner space of the drawer-shaped shell into a left part and a right part, and the left part is provided with a cable storage groove. The right part is divided into an upper right layer, a middle right layer and a lower right layer, the upper right layer is used for accommodating a main screen, the middle right layer is used for