A blood inspection device capable of separately discharging a sensor and a filter by using single discharge means. The blood inspection device has a housing (12) provided with a circular hollow cylindrical body (12b) having an opening (12a). A filter unit (13) including a filter (21) is provided inside the cylindrical body (12b), and a sensor unit (14) including a sensor (22) is provided outside the cylindrical body (12b). A body (15a) of the discharge means (15) is slidable outside the cylindrical body (12b). A first discharge section (15b) of the discharge means (15) comes into contact with the sensor unit (14) to push out and discharge it. A second discharge section (15c) of the discharge means (15) comes into contact with the filter unit (13) to push out and discharge it.