PROBLEM TO BE SOLVED: To provide an agricultural implement vehicle capable of easily performing a seedling transplanting work or harvesting work in a riding state, although there are implements having constitutions of planting the seedlings on ridges while propelling a machine body with a travel-propelling body such as wheels, etc., traveling on the both sides of the ridge as a seedling- transplanting machine for vegetable seedlings, many of the conventional seedling- transplanting machines are walking type and do not performing the work in a riding state. SOLUTION: This agricultural implement vehicle is provided by forming a working space part 9 communicating with the upper surface of the ridge, and arranging steps 10, 10 at both left and right sides of the working space part 9. Also, the left and right steps 10, 10 are arranged as an almost linear state along the front to rear direction toward the travel-propelling bodies 3, 4 traveling along between the ridges.