The invention relates to a design method of a production flow. In the method, a final
assembly (FA) process technique
flowchart is drawn: firstly, selecting that the FA process technique
flowchart of which
spacecraft needs to be generated under a product tree, wherein the FA process technique
flowchart comprises parallel operation nodes (M3, M4) and key nodes (M6, M7), and the next node is drawn after the key nodes (M6, M7) are finished; an FA process
route chart is drawn: firstly, selecting to generate a process
route chart of the FA process, wherein the process
route chart comprises parallel operation nodes (K3, K4) and key nodes (K6, K7), the next node is drawn after the key nodes (K6, K7) are finished, the meeting position of arrows of parallel nodes is represented by a hollow or
solid circle, and a numeric ordinal (K1) is generated automatically after a
geometric figure is increased at one time; the incidence relation between the nodes in a graph is defined: establishing the congruent relationship M-K of the node M in the process flowchart and the node K in the process route chart and adding the corresponding process and the nodes K in the corresponding process in each pixel in the graph after drawing the FA process technique flowchart; a procedure information K-procedure is added in the process route chart: each node in a procedure route chart does not correspond to each procedure in a procedure
list, each node in the process route chart can correspond to a plurality of procedures in the procedure
list, but one procedure in the procedure
list only belongs to one node in the procedure route chart; graphs are browsed: the graphs are managed by adopting the product tress mode; when one type on a structural tree is selected, the corresponding process technique flowchart can be displayed; sub-nodes in the process technique flowchart form the process route chart, and each pixel in the process route chart can display the corresponding.