The invention relates to a multifunctional test bar. The multifunctional test bar comprises a hollow length adjustable bar body, a universal locating flexible tube is connected to the top end of the bar body and is installed in an inner cavity in the top part of the bar body in a sliding manner, a flexible tube clamping and locating mechanism is arranged in the inner cavity in the top end part of the bar body, a camera box is installed at the outer extending end of the universal locating flexible tube, a camera is installed on the camera box, the test bar further comprises display screen equipment in wireless communication connection with the camera, the display screen equipment is handheld or is detachably clamped on the bar body through a clamping seat, a spring cable clamp is installed at the bottom end of the bar body, and a current detection wire and a voltage detection wire are led out from the spring cable clamp. The multifunctional test bar helps to read a name plate rapidly, assists in wiring, is simple in structure, is flexible to operate, and is quite convenient to carry and use.