A vegetable planting and cultivating device comprises a vegetable planting groove, a triangular lifting lug, a strip-shaped upper plate, a U-shaped fixing frame, a positioning inserting column, a strip-shaped clamping plate and a strip-shaped positioning plate, a plurality of vegetable planting groove holes are formed in the bottom of the vegetable planting groove, the triangular lifting lug is connected with the vegetable planting groove, and a triangular lifting lug inner hole is formed in the triangular lifting lug; the triangular lifting lugs are symmetrically arranged on the upper portion of the vegetable planting groove, the two side faces of the strip-shaped clamping plate are attached to the side faces of the U-shaped fixing frame, the positioning inserting columns are connected with the U-shaped fixing frame, the two sets of positioning inserting columns are symmetrically arranged in the U-shaped fixing frame, the positioning inserting columns are matched with inner holes of the triangular lifting lugs, and the positioning inserting columns penetrate through the inner holes of the triangular lifting lugs. The positioning inserting columns slide in inner holes of the triangular lifting lugs, the vegetable planting grooves are evenly distributed in the U-shaped fixing frame, the lower portion of the U-shaped fixing frame is provided with a U-shaped fixing frame side plate, the U-shaped fixing frame side plate is connected with a rectangular base plate, and the rectangular base plate is attached to the ground.