The invention relates to an integral type urea metering nozzle structure which comprises a valve rod, a protective sleeve and a swirl nozzle; the outer part of the lower end of the swirl nozzle is welded with the protective sleeve; a solution storage cavity is formed between the outer wall of the lower end of the swirl nozzle and the inner wall of the protective sleeve; a jet orifice is formed in the lower end part of the swirl nozzle; the valve rod is connected in an axial hole of the swirl nozzle in a sliding and inserting manner; a valve rod flow passage is formed in the valve rod in the axial direction from top to bottom; a communicating hole, corresponding to the solution storage cavity, is formed in the swirl nozzle; a lower connecting hole is formed in the valve rod; the inner end of the communicating hole is matched with the outer end of the lower connecting hole; an upper connecting hole is formed in the valve rod; an outer sealing surface is arranged at the lower end part of the valve rod; the lower end part of a nozzle middle hole lower section is connected with the upper end part of the jet orifice through an inner sealing surface; and a swirl hole which communicates the solution storage cavity and a solution swirl cavity is formed in the swirl nozzle. The integral type urea metering nozzle structure has the advantages of convenience in processing and manufacturing, easiness in controlling critical size and tolerance, good performance and the like.