With the increased use of composite materials in aircraft main load-bearing structures, it is of great significance tostudy the failure modes and energy absorption characteristics of the structures made up of composite materials. This paperused finite element method (FEM) and investigated the performances of braided composite tubes with semi-circular cavityexternal trigger during crashing. The generated data were used to modify the dynamic Kriging model. Based on the surrogatemodel, the artificial bee colony (ABC) optimization algorithm was used to optimize the cavity radius, tube diameter and tubethickness, so as to minimize the peak load and maximize the specific energy absorption (SEA). The results showed that theKriging model had high accuracy and efficiency in simulating the stress and deformation. The proposed model determinedthe optimized parameters using the ABC model, one of which improved the SEA by 39.6 % and reduced the peak load by38.6 %, thereby improving the structural properties of braided composite materials.