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Up to now,60% of aero-structure components manufacturing failures can attribute to the assembly problems; the sector of sequence and path took up over 70% of the assembly problems.The lack of designing for assembly sequence and path which take assembly resources into account caused a mass of redesigning as well as remanufacturing.This paper purposed to solve the aero-strueture components assembly design problems by a sequence and path feedback method.A new GAAA (Genetic and Ants Arithmetic) was investigated to present the optimized assembly sequence in order to solve this NP (Nondeterministic Polynomial-bounded) problem in high searching and solving efficiency.A new BRep-filling Arithmetic which can form a scan-body through the part and its kinetic orientation was also developed to check whether collision would appear or not,and on the basis of the proposed assembly sequence,and an interactive corresponding path planning method with feedback was developed to forecast the problems which would appear to designers and avoid the most of assembly collision in the period of product design.The simulation result of the assembly process developed in CAA for CATIA proved that the proposed sequence and path feedback method for aero-structure components assembly optimal design can solve a practical application quit well.