The present invention relates to an apparatus for fixating a rodent which comprises: a fixation plate which is formed in the shape of a rectangular plate to allow the rodent to be placed thereon a support unit which is formed on an upper side of the fixation plate and includes a first insertion groove and a second insertion groove formed on one side a first fixation unit which has an adsorption plate to be installed on a certain portion of the upper side of the fixation plate and fixates legs of the rodent placed on the fixation plate a second fixation unit which includes a fixation unit joined to adsorption plates to be installed on a certain portion of the upper side of the fixation plate and is formed to fixate the legs of the rodent place on the fixation plate an upper jaw fixation unit which is inserted in the first insertion groove of the support unit, is pivotally formed, and has a shaft and a spur formed on one end portion an adjustment device which has the spur gear, formed on one end portion of the upper jaw fixation unit, and a worm gear, joined to the spur gear, and includes a head unit formed on an upper end portion of the worm gear and a lower jaw fixation unit which is inserted in the second insertion groove of the support unit and is pivotally formed. According to the present invention, the apparatus for fixating a rodent adjusts a location of the fixation unit for fixating legs of the rodent and thus can stably fixate the rodent regardless of age and kind of the rodent. Therefore, the apparatus for fixating a rodent enables a user to perform blood collection and an experiment in an easy manner.COPYRIGHT KIPO 2016본 발명은 설치류 고정장치에 관한 것으로서, 상기 고정장치는 사각 판형상으로 형성되며 설치류가 안착되는 고정판상기 고정판의 상면에 형성되고 일측에 제1끼움홈과 제2끼움홈이 형성되는 지지부상기 고정판의 상면 어느부위에 설치되도록 하단에 흡착판이 구비되며 상기 고정판에 안착되는 설치류의 다리를 고정하도록 형성되는 제1고정부상기 고정판의 상면 어느부위에 설치되도록 양측에 흡착판이 결합된 고정부를 포함하며 상기 고정판에 안착되는 설치류의 다리를 고정하도록 형성되는 제2고정부상기 지지부의 제1끼움홈에 결합되어 회동가능하게 이루어지고, 일단에 축과 평기어가 형성되는 상악고정부상기 상악고정부의 일단에 형성되는 평기어와
