PROBLEM TO BE SOLVED: To provide a blood vessel image photographing device and a person authentication system, capable of improving the accuracy of person authentication even for such a case when the width of a finger presentation section on which the blood vessel pattern of fingers is photographed becomes narrow.SOLUTION: Provided is a blood vessel image photographing device comprising a finger presentation section having a planer surface on which fingers are placed, a lighting source for emitting light to the fingers placed on the finger presentation section, a photographing section for photographing images of blood vessels included in the fingers to which the light is emitted, a housing for enclosing the photographing section, and an authentication section for performing person authentication based on the photographed images of the blood vessels, and that the finger presentation section is characterized by projecting from the housing.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】指の血管パターンが撮影される指提示部の幅が狭くなった場合でも、個人認証の精度を向上できる血管画像撮影装置および個人認証システムを提供する。【解決手段】指が宛がわれる平面を有する指提示部と、前記指提示部に宛がわれる指に光を照射する光源と、光が照射された指に含まれる血管の画像を撮影する撮影部と、前記撮影部を内包する筐体と、撮影された血管の画像に基づいて個人認証を行う認証部を備える血管画像撮影装置であって、前記指提示部は前記筐体に対して突出していることを特徴とする。【選択図】図1