In this study, a high-star hotel is used as a case to study the impact of informatization on hotel human resource management. For the hotel human management system data with many types, large quantities and high security requirements, the data disaster recovery backup should have scalability and privacy protection. The results show that: First, from an overall point of view, the current human resource management in the hotel industry has fully entered the information age, and the overall trend will continue. Secondly, in terms of specific applications such as recruitment management, training management, personnel management, etc., combining it with cryptographic technologies such as AONT and threshold secret sharing, a new power data disaster recovery backup scheme is proposed, which is implemented on the open source blockchain platform.