Nucleic acid analysis device, microchip mounting method in the microchip and the device for nucleic acid analysis

Without requiring a complicated structure and control, provision of precisely controllable nucleic analyzer timing of initiation. Between a heating portion for applying thermal contact with the microchip, the first holding position of the hollow holding the microchip, and a second holding position for holding the microchip in contact with the heating unit and repositionable and chips holding unit, providing a nucleic acid analysis device comprising a. The nucleic acid analysis device has a closing structure according to the hinge, the chip holding portion is connected by the hinge, between the second holding position and the first holding position in conjunction with the opening and closing of the opening and closing structure configured to move. The nucleic acid analysis device, by closing the opening and closing structure After holding the microchip chip holding portion in a first holding position by opening the opening and closing structure, micro chip held by the chip holding portion is first heated possible to contact the part.