The invention discloses a conveying device with an adjusting function for logistics vehicle loading, and relates to the technical field of material cargo conveying. The conveying device comprises a bottom plate and a second conveying belt, a driving device is fixedly connected to the position, close to the left, of the upper surface of the bottom plate, two transverse plates are arranged on the driving device, and fixing frames are fixedly connected to the left end and the right end of the transverse plate correspondingly. According to the conveying device with the adjusting function for logistics truck loading, a fifth rotating shaft and a rotating plate are driven to rotate through rotation of a gear, in the rotating process, the rotating plate enables a supporting plate, a second supporting block, a first connecting plate, a second connecting plate, a third conveying cylinder, a fourth conveying cylinder and a second conveying belt to integrally move upwards under the combined action of a first pin shaft, a connecting rod, a second pin shaft, a hinge seat and a second telescopic rod, thus the height of the second conveying belt is adjusted, the second conveying belt adapts to the height required by a logistics vehicle, vehicle loading of the cargoes is convenient, therefore, the conveying device has universal applicability, and the use requirements of users are met.