The invention relates to a control device for shifting of a gearbox for driving traveling. The control device comprises a shift signal detection circuit, an engine rotation speed signal detection circuit, a shift switch control circuit, a shift display circuit, a shift output control circuit, a programmable controller and an oil pump control circuit, wherein the shift signal detection circuit is used for detecting a shift signal of the gearbox, the engine rotation speed signal detection circuit is used for sampling a rotation speed signal of an engine, the shift switch control circuit is used for controlling the input and output of shifting, and the oil pump control circuit is used for receiving a control signal outputted by the programmable controller to enable an oil pump proportional amplifying circuit to output set current value, so as to control the displacement of a hydraulic pump. The control device has the advantages that as the programmable controller and the intelligent detection and control circuits are adopted, the design is novel, the structure is simple, the control performance is high, the reliability is high, and the like; the purpose of quick and safe shifting of the gearbox is realized; and the problems of difficult shifting, damage to gears, and the like caused by the defects of the prior art are effectively solved.