The distribution characteristics of the residual stress field caused by laser shock peening (LSP) were studied in TB6 pore structure. The finite element model of LSP was established by ABAQUS finite element software. The constant explicit damping method was used to analyze the influence of process parameters such as LSP angle

lap length and shock number on the residual stress field of the pore structure

and compared with the experimental test results. The results show that the LSP angle has an important influence on the residual stress value at the pore inner wall. The residual stress value increases with the increase of the LSP angle. The overlapping rate has no obvious effect on the stress state of the pore angle. As the number of shock increases

the residual stress also increases

but it will gradually become saturated. Finite element results including the residual stress value and evolution trend caused by LSP have a good agreement with the experimental test results.