The invention relates to a semi-automatic hydraulic erection truck for conveying wallboards, comprising a directional rear land wheel, a hydraulic oil pump, a power generating machine, a hydraulic jacking member, a frame, an universal front land wheel, a traverse hinge, a front tilting plate, a front baffle, a longitudinal hinge, an erecting top plate, an erecting side pole support, a side baffle, and a supporting plate. The frame is a main part of the semi-automatic hydraulic erection truck; the directional rear land wheel is arranged at a rear grounding support point of the frame; the universal front land wheel is arranged at a front grounding support point of the frame; the power generating machine is arranged at the middle section of the frame or at a position halfway back of the frame; the hydraulic oil pump is arranged on the frame at one side of the power generating machine, and is dynamically connected with the power generating machine; the hydraulic jacking member is arrangedat a position halfway front of the frame, and is connected with the hydraulic oil pump through hydraulic pipelines; the erecting top plate is arranged at the ends of a carrier rod of the hydraulic jacking member, and the ends of the carrier rod of the hydraulic jacking member are then movably connected with a lower surface of the erecting top plate; a front end of the frame is movably connected with the front tilting plate through the traverse hinge; the supporting plate is arranged above the frame; the front baffle is positioned above a front end of the supporting plate. The semi-automatic hydraulic erection truck for wallboards conveying has the advantages of simple overall structure and convenient operation and use.