The utility model discloses a lubricating oil nozzle flow test fixture, which is characterized in that a lubricating oil nozzle is supported and positioned through a positioning seat, and a sleeve forsleeving the lubricating oil nozzle is arranged on the positioning seat; the flow guide holes corresponding to the oil injection holes of the lubricating oil nozzle are formed in the sleeve, the flowguide pipes are connected to the flow guide holes so that the oil injection quantity of the corresponding oil injection holes can be conveniently counted, and whether the sizes and the directions ofthe oil injection holes can meet the design requirements of the oil injection quantity or not is further judged. The clamp is simple in structure and suitable for the lubricating oil nozzle with multiple and dense oil injection holes, the technical problems that an existing tool is difficult to design, prone to interference and difficult to machine are solved, the measuring efficiency is improved,only sleeves need to be redesigned for other lubricating oil nozzles of similar structures, and universality is high.