To provide a caulking nozzle unit which can provide a sterically finishing shaped caulking process without using a curing tape or a spatula.

In a nozzle unit 1, a molding part 2 is bent as a caulking finishing shape and has two ground contact parts 5 which are nearly parallel to each other on its both sides. The ground contact parts 5 are pushed against a caulking process surface to provide a space between the molding part 2 and the caulking process surface, and thereby forming a discharge part 6 which defines a finishing shape and a pressure absorption part 7 which plays a role of absorbing the pressure fluctuation from a caulking gun or the like. The space is a taper-shaped, becoming thin from the pressure absorption part 7 to the discharge part 6. In the upper part of the molding part 2, an inclined injection port 3 to be connected with a caulking gun and the like through an adopter 4 is provided closely to the pressure absorption part 7. In the upper part of the pressure absorption part 7, an inclined guide plate 8 is provided to guide a stray caulking agent inside through the pressure absorption part 7.