Relay protection verification instrument

The invention provides a relay protection verification instrument, comprising a display screen. A side wall of the display screen is provided with lock catches. The display screen is mounted on an upper surface of an operation box. The surface of the operation box is provided with a power switch, and one side of the power switch is provided with a printing interface. The surface of the operation box is provided with a communication interface, and one side of the communication interface is provided with an operation button. One side of the operation button is provided with an air exhaust opening, and the air exhaust opening is positioned in the surface of the operation box. The surface of the operation box is provided with a temperature receptor and a current input interface, and the temperature receptor is positioned at one side of the current input interface. The surface of the operation box is provided with a locking button, and one side of the locking button is provided with an air inlet. A side wall of the operation box is provided with lock teeth, and one sides of the lock teeth are provided with a handle. The relay protection verification instrument provided by the invention is simple in structure, provided with the locking button, and capable of screen locking. When not in use, the relay protection verification instrument cannot touch other buttons by accident, and is high in verification efficiency and suitable for popularization and usage.