PROBLEM TO BE SOLVED: To provide a nozzle head which suppresses a difference in finish of surface processing caused by variation in assembly accuracy of a product or the like. SOLUTION: A nozzle head 50 attached to a tip of a hand gun for a water jet method is arranged in a head housing 51 having a non-circular cross-sectional shape perpendicular to the longitudinal direction of the hand gun and the head housing 51. A plurality of nozzles 52 (52a, 52b, 52c) and a water branch path 54 formed by drilling from the outside of the head housing 51 and branching the water channel 53 toward each of the plurality of nozzles on the way are provided. At least a part of the plurality of nozzles may be arranged at an angle so as to open with respect to the central axis. [Selection diagram] FIG. 8
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