The utility model provides a square integrated-cover-type hand-operated rising-stem wedge-shaped gate valve, which is characterized in that a middle body of a valve body is cuboid-shaped, hollow flanges connected by a collar clamp extend from the two ends of the valve body, and a hollow cylinder with an external thread extends right above the valve body; a valve cap is a hollow cylinder with a thick lower part and a slim upper part, and threaded holes are adopted for the connection at the two ends of the valve cap; the large threaded hole formed at the lower end of the valve cap is connected with the hollow cylinder with the external thread, which is positioned right above the valve body; and two thrust bearings for driving a valve stem and a valve stem nut are encapsulated in the threaded holes at the upper end of the valve cap through bearing glands. By adopting the rectangular thickened valve body and the integrated valve cap which can not only cover the upper port of the valve body, but also serve as a support or a bearing support, and in addition, a flat key, a hand wheel and a protective hood, which are universal for the nominal-diameter hand-operated rising-stem flat valve are mounted on the valve stem nut,, the square integrated-cover-type hand-operated rising-stem wedge-shaped gate valve serves as an oil-field wellhead component product, which has good pressure resistance and small operating moment, reduces the number of parts, improves the overall strength, and is more easy to manufacture.