The invention discloses an 
artificial intelligence medical grading treatment method and 
system based on 5G and a block chain. The method comprises the steps that identity information, position information and 
medical information of a patient are collected through a patient terminal; the 
cloud server receives the identity information, the position information and the 
medical information sent by the patient, word segmentation is carried out on text data of the 
medical information to obtain first structured data, and a 
disease level is matched according to the first structured data; the identity information, the position information and the medical information of the patient and the corresponding timestamps are encrypted through an 
encryption algorithm and then packaged and sent to a block chain. 
Disease communication and 
data sharing among hospitals at all levels are realized, coordination of resources among the hospitals is facilitated, the 
referral efficiency of graded diagnosis and treatment is improved, the management difficulty is reduced, a graded diagnosis and 
treatment system of primary first diagnosis, bidirectional 
referral, acute and chronic division and treatment and up-down linkage is realized. And a medical pattern that a small illness is at a 
primary level, a large illness reaches a hospital and is recovered to a 
community is formed.