Composite materials were used on non-essential load-bearing structures such as the tail surface on the fuselage then the application extended to wings and fuselage. After half a century of development, such materials have already been applied in emerging energy, transportation, marine ships, petrochemical engineering, national defense, infrastructure, sports products, etc. Some say that mankind has already entered an era of composite materials. United Aircraft has arduously been devoted to research in the aerospace composite material field and dedicated to cost control and reduction of full-cycle expenditure in the 5 dimensions including materials, technological processes, design, verification, and operation/maintenance. The company now has rich experience in the design of large, medium, and small fuselage structures and can provide professional full composite structure schemes involving structural design scheme demonstration, detailed design, size optimization, lay optimization, technological process optimization, experimental verification, dynamic and static fatigue mild analysis, etc., according to the product demands and characteristics.