The invention provides an internet of things seal capable of recognizing mechanical pressing coding and a verification method. The seal comprises a seal head, a mechanical pressing coding device and aseal intelligent module; during each-time sealing, through pressure automatic rotation, the next seal sequence number is sealed, the seal information and the seal sequence number can be recognized, and the seal information and the seal sequence number are associated and then are transmitted to a cloud server. The automatic mechanical pressing coding device is arranged in the intelligent seal, theunique seal sequence number can be sealed on a document automatically while sealing is carried out, the seal information and the seal sequence number each time are associated, and seal management isgreatly facilitated; meanwhile, the associated information is sent to the cloud server through a network module, a cloud user can carry out recording, supervision, management, inquiring and verification on use of the seal in real time, and cloud signature can be carried out.