To investigate the effects of wet assembly process parameters including tightening torque， adhesive layer thickness， and bolt hole fit on the mechanical performance and failure modes of braided composite bolt-adhesive hybrid joint structures， single-lap specimens are fabricated and subjected to tensile mechanical testing. A finite element simulation model of the bolt-adhesive hybrid joint is established using the three-dimensional Linde criterion combined with cohesive elements， enabling a systematic analysis of different joint process parameters on influence mechanical performance， joint stiffness distribution， and damage evolution characteristics. The result shows that the structure has different mechanical properties and failure modes under different tightening moments. When the tightening moment increases from 0 N·m to 5 N·m， the adhesive damage gradually changes from interface failure to cohesive failure mode， and the structural failure modes undergo transformation. The change of adhesive thickness effects the load sharing ratio of the joints. It results in the change of joints’ mechanical properties. The influence on the fiber damage， matrix damage and layered damage distribution of the structure is small. When the thickness of the adhesive layer is 0.5 mm， the performance of the joint structure is the best， and the load sharing ratio of the joints is the smallest. With the increase of the hole clearance， the stiffness of the joint first increases and then slowly decreases. Because when the clearance exceeds 0.7%， the bolt and the adhesive in the joint cannot co-deform leading to the decrease of its bearing capacity.