PROBLEM TO BE SOLVED: To provide buckwheat noodle water powder which allows a user to easily make buckwheat noodle water by a simple method anytime and anywhere and to take rutin needed per day, and which can be dissolved in hot water or water to drink as buckwheat noodle water, and to provide a buckwheat noodle water drink using the buckwheat noodle water powder.SOLUTION: Buckwheat noodle water powder is obtained by mixing 50 to 5000 mg of rutin powder, preferably 300 mg, into 50 g of buckwheat flour. A buckwheat noodle water drink is obtained by dissolving 5 g of buckwheat noodle water powder, in which 300 mg of rutin powder is mixed into 50 g of buckwheat flour, in 160 ml of hot water or water.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】 簡易な方法でいつでもどこでも容易にそば湯を作ることができ、一日に必要なルチンが摂取でき、湯又は水に溶かすことで、そば湯として飲むことができるそば湯の素及びそれを用いたそば湯飲料を提供する。【解決手段】 そば粉50gに対しルチンの粉末50mg~5000mg、好ましくは300mgを混合したそば湯の素及び160mlの湯又は水に、そば粉50gに対しルチンの粉末300mgを混合したそば湯の素を5g溶かしたことを特徴とするそば湯飲料。【選択図】なし