The utility model discloses a printing article shelter bridge conveyor, including cargo platform and a pair of guide rail, cargo platform comprises supporting rack and spacing, and spacing up end be fixed in to the supporting rack lower part, and the supporting rack width is greater than spacing width, has the recess on the guide rail body, and the groove phase of a pair of guide rail is provided with gyro wheel A to setting up at the bottom surface outside edge of supporting rack, and gyro wheel A supports in the upper surface of guide rail, transversely sets up gyro wheel B in spacing the outside, and gyro wheel B assembles in the recess of guide rail. Because the gyro wheel B in spacing the outside assembles in the recess of guide rail, gyro wheel B's upper and lower direction about with the direction spacing, gyro wheel B can only follow guide rail recess longitudinal rolling like this, even cargo platform is central at the skew platform of operation in -process focus, cargo platform can not derail yet. The utility model discloses simple structure, job stabilization is reliable, the steady safety of operation in -process, installation and easy maintenance.