A work vehicle comprising: a body; a boom which is supported by the body and is turned; a bucket which is supported by a side of the boom opposite to a side of the body and is turned; a boom driving part which turns the boom; a bucket driving part which turns the bucket; a lifting force detector which detects lifting force as force that the boom driving part receives from the boom; a boom angle detection sensor which detects an angle (α) of the boom; and a vehicle speed detector which detects a speed at which the work vehicle runs, characterized in that the work vehicle further comprises: a control device which starts a tilt operation of the bucket when a predetermined condition is established, and ends the tilt operation on the basis of an amount of increase of the lifting force from a time when the tilt operation is started, wherein the control device starts the tilt operation on the basis of at least a detected result from the lifting force detector and a detected result from the vehicle speed detector, and the control device starts an ascending operation of the boom on the basis of the lifting force, the speed at which the work vehicle runs, and the angle (α) of the boom, and ends the ascending operation on the basis of an amount of increase of the lifting force or the angle (α) of the boom from the start of the ascending operation of the boom. a body; a boom which is supported by the body and is turned; a bucket which is supported by a side of the boom opposite to a side of the body and is turned; a boom driving part which turns the boom; a bucket driving part which turns the bucket; a lifting force detector which detects lifting force as force that the boom driving part receives from the boom; a boom angle detection sensor which detects an angle (α) of the boom; and a vehicle speed detector which detects a speed at which the work vehicle runs, characterized in that the work vehicle further comprises: a control device which starts a tilt operation of the bucket when a predetermined condition is established, and ends the tilt operation on the basis of an amount of increase of the lifting force from a time when the tilt operation is started, wherein the control device starts the tilt operation on the basis of at least a detected result from the lifting force detector and a detected result from the vehicle speed detector, and the control device starts an ascending operation of the boom on the basis of the lifting force, the speed at which the work vehicle runs, and the angle (α) of the boom, and ends the ascending operation on the basis of an amount of increase of the lifting force or the angle (α) of the boom from the start of the ascending operation of the boom. a control device which starts a tilt operation of the bucket when a predetermined condition is established, and ends the tilt operation on the basis of an amount of increase of the lifting force from a time when the tilt operation is started, wherein the control device starts the tilt operation on the basis of at least a detected result from the lifting force detector and a detected result from the vehicle speed detector, and the control device starts an ascending operation of the boom on the basis of the lifting force, the speed at which the work vehicle runs, and the angle (α) of the boom, and ends the ascending operation on the basis of an amount of increase of the lifting force or the angle (α) of the boom from the start of the ascending operation of the boom.