The application of FRP profiles in engineering structures is increasing. However, the joint connection between FRP profiles is a challenging problem. To overcome the drawbacks of existing joints of FRP profiles, such as brittle failure, low material strength utilization, this paper proposes a double-lap joint of GFRP-aluminum alloy connected by the swage-locking pin. With the thickness of the cover plate, the number of pins, and the adhesive agent as the variables, double-lap joint specimens were prepared and tested under uniaxial tensile loading. The failure modes and load-displacement curves of different joint specimens were obtained. Test results revealed that brittle failure of GFRP plates took place when the thickness of cover plate was relatively large, while the ductile failure of the cover plate took place when the thickness of cover plate was relatively small. With the increase of the number of pins, the loading capacity of the joint increased. The loading capacity of the hybrid joint was close to that of the swage-locking pin joint. The experimental results can serve as a reference for the joint design of all FRP or FRP-aluminum alloy structures.