BOM construction method, processor and machine readable storage medium

The embodiment of the invention provides a BOM construction method, a processor and a machine readable storage medium, and belongs to the technical field of computers. The method comprises the steps of obtaining a current material, determining whether the current material is a leaf component material when a traversal identifier of the current material is a first identifier, determining whether the current material is a complex relation material when the current material is not the leaf component material, and performing breadth-first traversal based on a simple relation material table when the current material is not the complex relation material, matching a sub-level material of the current material, taking the sub-level material as the current material, executing the step of determining whether the current material is a leaf part material or not, and when the current material is the leaf part material, modifying the traversal identifier of the current material as a second identifier, all target materials on