Work gauge design is a difficult point in the teaching of Interchangeability and Tolerance Measurement Technology Practice.The work gauge design involves the tolerance zone of the workpiece.As the precision of the workpiece varies, the work gauge for the inspection of the workpiece needs to be redesigned and the design workload is repeated.In order to solve the problem, taking engineering drawing, database and parts manufacturing accuracy into comprehensive consideration,a flexible design system was put forward, and only size range and tolerance band code of workpiece were needed to select, then corresponding work gauge size and its work diagram could be designed quickly.The flexible design of ϕ25E6 working gauge and the quick dimensioning of ϕ45G7 plug gauge were used to verify the feasibility of the proposed method.