In order to process different microstructures on the surface of Ti6Al4V and change its surface morphology,thereby improving the strength of its bonded joints,the surface of Ti6Al4V was micromachined by nanosecond fiber pulse laser,the pulse energy and scanning interval of the laser were studied on the linear array and the influence of the surface morphology of the two microstructures of the grid and the strength of the bonded joint.The results show that when the pulse energy and the scanning interval are the same,the grid structure can obtain greater roughness and surface area than the linear array structure;laser processing can effectively improve the strength of the Ti6Al4V bonded joint;the linear array structure and the grid structure are respectively λ=50 %,ψ=100 %,λ=0 %,ψ=100 %,the joint has the maximum shear strength,respectively 25.2 MPa,27.2 MPa,compared with the non-laser bonded joint,its strength increased by 50.5 % and 62.5 % respectively;when the pulse energy and the scanning interval are the same,the grid structure is more conducive to improving the strength of the joint than the linear array structure.This study has certain reference significance for improving the strength of Ti6Al4V adhesive joints.