Abstract: A panel lock includes a shell, a rotating shaft, a locking tab, a handle, a latch hook and a first elastic spring. The rotating shaft is rotatably mounted in the shell. The locking tab is connected to and rotates along with the rotary shaft to realize unlocking and locking. The handle is rotatably mounted to the rotating shaft, and has a first position being folded and a second position being lifted during rotation about a first axis perpendicular to the rotating shaft. The handle includes a latching groove and a guiding portion arranged at a side of the latching groove. The latch hook is rotatably mounted in the shell. The first elastic spring is arranged between the latch hook and the shell. Automatic locking of the handle can be realized during the movement of the handle from the second position to the first position.