PROBLEM TO BE SOLVED: To provide an endoscope cleaning nozzle having sufficient rigidity and excellent drainage, and capable of reliably cleaning an observation window.SOLUTION: The endoscope cleaning nozzle includes: an inflow piping periphery portion 61 which is equipped with a flow path 64 allowing a fluid sent from a piping incorporated in an endoscope 2 to flow thereinto and having a hole cross section of substantially true circle shape a direction-changing flow path periphery portion 62 which is equipped with a direction-changing flow path 65 for changing the flowing direction of the fluid and a flow-regulating path periphery portion 63 which is equipped with a flow regulating path 66 for regulating the liquid flow and having a flat hole cross section. In the nozzle, the direction-changing flow path 65 is formed by changing a hole cross section so that the thickness of a portion exposed from the surface of the endoscope in the direction-changing flow path periphery portion 62 and the flow-regulating path periphery portion 63 is larger than the thickness of the inflow piping periphery portion 61 and so as to smoothly become flat from the flow path 64 toward the flow regulating path 66 and the sintering and shaping are performed so that the hole cross sectional area of the direction-changing flow path 65 is the smallest in the flow regulating path 66 side.
