To implement a cabinet with a step function capable of locking a drawer and releasing the lock by a simple operation.

A lock member 21 turns around a rotary shaft 30 so that the front side goes down by its self-weight and makes a locking part 31 of the lock member 21 engage with the engagement part 24 of a lock clasp 20 to lock, and a knock part 32 hits a part of the lock clasp 20 to generate a knocking sound to let a user know the locking. When a lock release lever 27 is lifted up, the lock member 21 can turn around the rotary shaft 30, and the locking part 31 of the lock member 21 separates down from the engagement part 24 of the lock clasp 20 to release the locking, so that a drawer 3 moves into the cabinet body 2 to be stored.