The present invention relates to an analyzing device having one end of a supplying capillary channel opened at a spot application section formed so as to protrude from an analyzing device main body, the supplying capillary channel connected to a microchannel structure formed inside the analyzing device main body, a sample liquid applied to the spot application section suctioned by a capillary force of the supplying capillary channel, and the analyzing device used for reading in which a suctioned solution is accessed, wherein a leading end of the spot application section is formed as an inclined face, and the end of the supplying capillary channel is opened on the inclined face.Moreover, the present invention relates to an analyzing device having one end of a supplying capillary channel opened at a spot application section formed on an analyzing device main body, the supplying capillary channel connected to a microchannel structure formed inside the analyzing device main body , a sample liquid applied to the spot application section suctioned by a capillary force of the supplying capillary channel and a capillary force of a holding chamber formed inside the analyzing device main body, and the analyzing device used for reading in which a suctioned solution is accessed, wherein a filling confirmation region with a gap that is smaller or greater than a gap of the holding chamber in which a capillary force acts is formed on a trailing end of the holding chamber.
