High-Lift device design is one of the key technologies during the development of large aircraft in China. Refered to the trailing edge high lift and its characteristic of airplane A350 and B787, aero-mechanism intergrated design of trailing edge hinge flap is researched. Trailing edge hinge flap is one of new advance high lift devices which uses simple hinge device to drive trailing edge high lift system. The advantage and disadvantage of the hinge flap with good prospects for development has been discussed. Aero-mechanism intergrated design modules are introduced in detail, which intergrated design of trailing edge hinge flap has been established based on the secondary development of CATIA. And the aero-mechanism intergrated design modules are set in an intergrated design platform. The platform improves efficiency for designing high lift device of large aircraft. The good results show that the design points out the development direction of high lift device on large aircraft and provides advices for further study.