According to the analysis of assembly techniques and methods on the existing front aircraft flaps, a digital flexible assembly method on certain front aircraft flaps is proposed, and a set of flexible assembly tooling is designed. This solves the status that it can not be reconciled and only assembly a single product on rigid tooling, as the flexible one changes its structure and the locating of products. This digital flexible tooling can assembly four types front fl aps on aircraft, improve assembly quality and effi ciency effectively, and shorten production cycle.