The invention discloses an improved intelligent electronic-mechanical integrated lock. The improved intelligent electronic-mechanical integrated lock comprises a lock pipe with an opening, a lock cylinder, a drive joint and a clutch pin driving device, wherein the lock cylinder and the drive joint are arranged at the two sides of the opening and located inside the lock pipe. The improved intelligent electronic-mechanical integrated lock further comprises an intelligent control part. A shifting block is arranged inside the opening. A clutch pin matched with the shifting block and the clutch pin driving device is arranged between the lock cylinder and the drive joint. A clutch structure is adopted between the clutch pin and the lock cylinder. A return spring of the clutch pin is arranged between the shifting block and the clutch pin. The lock pipe is provided with a card reader matched with a cryptographic card in a key. A switching elastic ball matched with the key and an elastic ball corresponding to the switching elastic ball are arranged on the lock pipe and the lock cylinder. A motor or an electromagnet, the switching elastic ball and the card reader are electrically connected with the intelligent control part. The improved intelligent electronic-mechanical integrated lock has the advantages of being simple in structure, convenient to use, safe and reliable, not prone to breaking down, long in service life and the like.