The invention provides a cross-border electronic commerce detection device, which comprises a base, a housing body, an inspection bench, a conveying mechanism, a detection mechanism, a control switchassembly, a first storage battery, an electrical box, a processor and a display screen. The conveying mechanism comprises a driving motor, two sets of conveyor belts arranged oppositely on the inspection bench, and a conveying roller connected with the driving motor through a belt pulley and used for driving the conveyer belt to realize conveying. The detection mechanism comprises a rotation shaftinserted horizontally on the inspection bench, an adjustment device fixedly arranged on the rotation shaft and located between the two sets of conveyor belts, a fixation plate connected with the adjustment device, a test machine arranged at the bottom end of the fixation plate and a servo motor for driving the rotation shaft to rotate. The inspection bench is provided with a first position switchand a second position switch at the two sides of the detection mechanism. The inspection bench is provided with a sensor for detecting size of a commodity. The cross-border electronic commerce detection device is accurate in image acquisition and high in detection precision and can detect multiple sides of the commodity.