In the present invention, in a nozzle device that reflects and provides the spray liquid sprayed through the nozzle, a fixing member to which a supply pipe for supplying the spray liquid is fixed and a support member for supporting the supply pipe are firmly coupled by a fastening member to stably support the supply pipe. It relates to a spray nozzle device for agriculture that can minimize the damage of the fixing member, A connection pipe inserted into a pipe hole formed on the upper side of the supply pipe through which the spray solution is supplied and having a pipe passage communicating with the inside of the supply pipe; A nozzle tip that has a spray hole for spraying the spray liquid to the outside, is fixed to the end of the connection pipe, and communicates with the pipe of the connection pipe; The left and right sides and lower surfaces are opened to accommodate the supply pipes in the left and right directions to form a supply pipe receiving part, and bridges are provided at the front and rear of the supply pipe receiving part respectively, and the upper side is integrally formed with the connection pipe to fix the supply pipe and the connection pipe ; A reflective member disposed close to the spray hole of the nozzle tip and provided on one side of the fixing member to reflect the spray liquid; A support body that has a seating portion corresponding to the supply pipe formed on the upper surface to support the supply pipe from the lower side and is inserted into the lower side of the fixing member to be fitted to the supply pipe receiving portion; A support member coupled to the fixing member at the lower side of the fixing member; A fixing bolt inserted from the lower side of the support member to support the lower portion of the support body and fastened and fixed to the nut seated on the support member; And a plurality of fastening screws that pass through the support member and are fastened to the fixing member.본 발명은 노즐을 통해 분무되는 분무액을 반사시켜 제공하는 노즐장치에