The invention discloses patient 
document retrieval authorization control method and 
system, belonging to the technical field of 
computer software. The method comprises the following steps of: firstly, classifying patient documents, setting access rights to the documents for medical personnel according to the roles of the medical personnel and issuing corresponding digital certificates to the medical personnel; then signing own documents by patients and meanwhile setting diagnosis 
activity participation roles and the 
access time of the medical personnel; and finally, determining the 
document retrieval rights of the medical personnel according to the roles, the diagnosis 
activity participation roles and the 
access time of the medical personnel by the 
system. The 
system comprises a medical personnel 
certificate registration mechanism, a patient 
certificate registration mechanism, a 
certificate authorization mechanism, a safety service interface, an 
access control module, a 
document retrieval client and a document base 
server. Compared with the prior art, the invention not only protects the individual privacy information of patients and the 
intellectual property of medical units, but also are convenient for the medical personnel to conveniently use the documents of the patients.