The invention provides a push plate system which comprises rack stand columns and a power conveying platform connected with one sides of the rack stand columns. Each rack stand column comprises a control device, a hydraulic lifting power conveying platform, a first draft gear, a push hand device and a second draft gear. A supporting plate platform is horizontally arranged on the lower portion of a rack body. The first draft gears are connected with the hydraulic lifting power conveying platforms. The push hand devices are arranged on the upper sides of the rack stand columns. One ends of the second draft gears are connected with the push hand devices. By the adoption of the push plate system, multiple plates on the hydraulic lifting power conveying platforms are controlled through the control devices to be conveyed into the power conveying platform one by one, so that the problem that plates need to be conveyed manually or the plates need to be put on a power conveying platform manually one by one, and manpower resources and time are wasted is solved.