BPMN-based workflow approval method and system

The invention relates to the technical field of process approval, in particular to a BPMN-based workflow approval method and system, and the method comprises the steps: converting obtained process management data into a standard file format through setting configuration parameters, and storing the data in a preset process container; customizing a process template file according to a process demand, and importing the process template file into a process container through a preset workflow framework and a form designer; node processing is carried out on the converted flow template file data, and flow node data is extracted; extracting a target process file node from the process container and establishing a mapping relation between the target process file node and the process node data; and converting the flow node data into a flow file according to a preset rule, storing the flow file in a server, and issuing the flow file to a target flow container. According to the invention, the adaptation degree of process