A sliding type children's drawer lock comprises a lock match arranged on the inner side of the drawer cabinet and located at the opening of the drawer cabinet, and a lock body that is arranged on the inner end surface of the drawer and can cooperatively lock with the lock catch. The lock body comprises a base arranged on the inner end surface of the drawer, a connecting block is arranged in the base, a lock hook matched with the latch is arranged at the end of the connecting block, an inserting plate is located in a chamber and inserted into a jack, a spring is arranged in the chamber, and the connecting block is driven to slide in a chute through a pick. After locking the latch cooperate to lock, the maximum length that the drawer opens is just enough to expose one end of the pick away from slots.