A work vehicle comprising: a working device that includes an arm and a bucket; a vehicle speed detection device (26, 653) that detects a vehicle speed; a travel drive device (600D, 730) that outputs a travel driving force increasing in response to a decrease in the vehicle speed at a time of excavation; and a control device (10, 610, 710) that controls the travel driving force by the travel drive device (600D, 730), characterized in that the control device (10, 610, 710) includes: a storage section that stores a predetermined first vehicle speed threshold value (Va1, Va4) and a second vehicle speed threshold value that is higher than the predetermined first vehicle speed threshold value (Va1, Va4); and a limit control section that limits the travel driving force during a specified time which passes from when the work vehicle plunges into an object to be excavated until an operation of the working device is started in a case where the vehicle speed detected by the vehicle speed detection device (26, 653) is determined to be higher than the second vehicle speed threshold value and where the vehicle speed becomes the first vehicle speed threshold value (Va1, Va4) or less from a state where the vehicle speed is higher than the second vehicle speed threshold value. a working device that includes an arm and a bucket; a vehicle speed detection device (26, 653) that detects a vehicle speed; a travel drive device (600D, 730) that outputs a travel driving force increasing in response to a decrease in the vehicle speed at a time of excavation; and a control device (10, 610, 710) that controls the travel driving force by the travel drive device (600D, 730), characterized in that the control device (10, 610, 710) includes: a storage section that stores a predetermined first vehicle speed threshold value (Va1, Va4) and a second vehicle speed threshold value that is higher than the predetermined first vehicle speed threshold value (Va1, Va4); and a limit control section that limits the travel driving force during a specified time which passes from when the work vehicle plunges into an object to be excavated until an operation of the working device is started in a case where the vehicle speed detected by the vehicle speed detection device (26, 653) is determined to be higher than the second vehicle speed threshold value and where the vehicle speed becomes the first vehicle speed threshold value (Va1, Va4) or less from a state where the vehicle speed is higher than the second vehicle speed threshold value. a storage section that stores a predetermined first vehicle speed threshold value (Va1, Va4) and a second vehicle speed threshold value that is higher than the predetermined first vehicle speed threshold value (Va1, Va4); and a limit control section that limits the travel driving force during a specified time which passes from when the work vehicle plunges into an object to be excavated until an operation of the working device is started in a case where the vehicle speed detected by the vehicle speed detection device (26, 653) is determined to be higher than the second vehicle speed threshold value and where the vehicle speed becomes the first vehicle speed threshold value (Va1, Va4) or less from a state where the vehicle speed is higher than the second vehicle speed threshold value.