The utility model relates to component parts of a horizontal drill guide frame, in particular to a traveling mechanism of the horizontal drill guide frame. The traveling mechanism of the horizontal drill guide frame solves problems that an existing horizontal drill guide frame is time-wasting and labor-wasting in moving, low in efficiency and prone to deform. The traveling mechanism of the horizontal drill guide frame comprises driving rollers arranged on the front of the left side and the right side of a guide frame beam. Driven rollers are arranged at back of the driving rollers. Auxiliary supporting rollers are arranged near the driving rollers and the driven rollers. A motor fixed with the guide frame beam is arranged above the driving rollers. An output shaft of the motor is connected with a reducer. A conveyor belt is arranged between the reducer and the driving rollers. The traveling mechanism of the horizontal drill guide frame has the advantages that structural design is reasonable and reliable, labor intensity is greatly reduced, time needed for switching of working procedures is shortened, deformation is effectively prevented, operation is simple and convenient, structure is simple, and cost is low.