Abstract: In view of the problem of data being attacked and stolen when managing medical sensitive information, an intelligent encryption algorithm of medical sensitive information based on quantum computing is proposed. The key construction of quantum encryption for medical sensitive information is designed by considering the mixed entangled state, and the protocol subspace matrix constructed inside the key is analyzed.By calculating the neighborhood distribution function of information, the separation matrix quantum coding is constructed to provide processing data for key rearrangement. Considering the interference of quantum entangled states and their additional states, the effective key encryption is carried out, and finally the intelligent encryption
of medical sensitive information is realized. The experimental results show that this method has good anti-attack ability, high transmission efficiency of encrypted information, and good overall performance.

Key words: quantum computing, medical sensitive information, intelligent encryption, key, coding