A clinical laboratory testing apparatus comprises a microchip for holding a sample liquid; a rotation body for rotating the microchip; a rotation drive mechanism; a lock mechanism for locking the microchip on the rotation body; a measurement room that holds the microchip and the rotation body; a protection cover; a light source that irradiates the measuring cell of the microchip; and a light receiving unit, wherein a centrifugal separation processing of a specimen in the sample liquid is performed in the microchip.