The invention discloses a running deviation correction device for a truss-type mud scraper/absorber. An end beam and a running system run on a rail; a rail wheel is installed on a driving shaft and a driven shaft and tightly blocked and located via a shaft sleeve; the driving shaft and the driven shaft are installed on a bearing seat via a self-aligning bearing; the bearing seat is fixed on the end beam via a fastener, and fastening holes in the bearing seat are waist-shaped holes; a front running deviation correction device and a rear running deviation correction device are arranged; a base of the running deviation correction device is tightly fixed on a side surface of the end beam; and one end of an adjusting screw rod is tightly fixed on the bearing seat of the driving or driven shaft via a clamping nut while the other end of the adjusting screw rod is limited on the base after crossing an adjusting nut for the base. The running deviation correction device is simple in manufacturing technique and accurate in fine adjustment and can well solve the problem of running deviation of the truss-type mud scraper/absorber, so that high practical value is obtained.