The invention relates to the field of computer 
data interface opening and 
authority control, and provides an API processization method based on 
workflow and 
authority control. The invention aims to solve the problems of bloated codes, numerous nodes, difficulty in maintenance and long 
development period in the conventional API (Application Program Interface) which is disposable and cannot be reused for 
code writing. According to the main technical scheme, the method comprises the following steps: 1, carrying out type configuration on different service attributes, and unifying expression of 
service information with the same meaning in a set of 
system; 2, carrying out 
configuration management on services, and realizing interface unification and definition consistency; 3, a 
service flow definition method: defining internal 
business logic in the service, and visualizing the 
service flow; 4, value transmission among the process nodes: packaging transmission values among different methods ofthe same process into a specific object entity, and storing the specific object entity in a memory stack; and 5, transmitting the object entity in the process, unpacking the next level, merging the input 
parameter type and the specific object name, and packaging again to transmit to the next level.