The invention relates to the technical field of 
big data, and discloses a data desensitization method, device and equipment and a storage medium, which are used for improving the efficiency and accuracy of data desensitization operation. The data desensitization method comprises the steps of when a file compiling request is received, obtaining a 
data model file according to the file compiling request, compiling the 
data model file into an initial 
byte code file, and operating the initial 
byte code file; performing 
recursive analysis on the initial 
byte code file running in the program by adopting a 
byte code control framework to obtain an agent object 
data set, and caching the agent object 
data set; when a desensitization 
processing request is received, determining to-be-desensitized dataaccording to the desensitization 
processing request, and querying a target proxy object from the proxy object 
data set; and obtaining a preset desensitization rule, calling the target agent object, and performing desensitization operation on the to-be-desensitized data according to the preset desensitization rule. In addition, the invention also relates to a 
blockchain technology, and the proxy object data set can be stored in the 
blockchain node.