A hydraulic support truck-loading platform has the advantages of safety, sanitation, convenience of use, and high working efficiency, and comprises a connecting platform, wherein a guiding ladder road is connected to one side of the connecting platform; a limit frame is connected to the other side of the connecting platform; the guiding ladder road comprises ladder-shaped bases; guiding tracks and guiding baffles are welded on the ladder-shaped bases; the guiding baffles are positioned on the outer sides of the guiding tracks; the limit frame comprises limit bases; flat truck tracks and limit baffles are welded on the limit bases, and the limit baffles are positioned on the outer sides of the flat truck tracks; the connecting platform comprises a base; guiding ladder road connecting plates are welded on one side of the base; limit frame connecting plates and anti-vibration tables are welded on the other side of the base; the guiding ladder road connecting plates are fixedly connected with the guiding tracks; the limit frame connecting plates are fixedly connected with the flat truck tracks; a flat truck locating slot is formed on the base; the opening of the flat truck locating slot faces to the side where the limit frame is located; and arc-shaped baffles are welded on the base.