The invention provides a chain positioning device belonging to the technical field of machinery. The invention solves the problems that the existing chain can not be firmly positioned and has poor security. The chain positioning device comprises a tabular baseboard which is fixedly connected with a lockset and a cannular connecting base used for inserting the end of the chain, and the spring boltof the lockset can be positioned in the connecting base. The chain positioning device has the advantages of convenient use, high positioning stability, high security and the like.