An automated nucleic acid processor using a multi function dispensing unit comprising: a nozzle head provided with a suction-discharge mechanism that performs the suction and the discharge of gases, and one or two or more nozzles that detachably mount dispensing tips, whereby the suction and discharge of liquids is possible by means of the suction-discharge mechanism; a container group having, at the very least, one or two or more liquid housing parts that house amplification solutions used for nucleic acid amplification and one or two or more reaction vessels; a transfer mechanism that makes an interval between said nozzles and said container group relatively movable; a temperature controller whereby temperature control of the interior of said reaction vessels for nucleic acid amplification is possible; a sealing liquid and/or sealing lids housed in predetermined housing parts other than said reaction vessels of the container group that are transportable to said reaction vessels using said nozzles, which make said amplification solutions housed in the reaction vessels sealable within the reaction vessels; and a sealing control part that controls said suction-discharge mechanism and said transfer mechanism, or said transfer mechanism, such that said sealing liquid and/or the sealing lids seal said amplification solution within the reaction vessels when the housing of said amplification solution in said reaction vessels is completed further comprising a measuring part that is able to measure an optical state, including light emissions, colors, color changes, or light variations generated within said amplification solutions sealed within said reaction vessels by means of said sealing liquid and/or the sealing lids, one or two or more measuring ends of the measuring part that receive light based on said light emissions, colors, color changes, or light variations and are provided on said nozzle head such that the measuring end corresponds to an end surface of said nozzle or the measuring end is provided on said nozzle head separated from an end portion of said nozzle by leaving a predetermined spacing and is linked with said nozzle and by approaching the aperture of the reaction vessels of the container group from the upper side, is able to receive light or irradiate light via the sealing liquid and/or the sealing lid, and a measurement control part that said measurement is made possible by controlling said transfer mechanism such that said measuring ends are made to approach said reaction vessels following sealing of, or at the time of sealing of, said amplification solutions containing said amplification subjects in said reaction vessels. a nozzle head provided with a suction-discharge mechanism that performs the suction and the discharge of gases, and one or two or more nozzles that detachably mount dispensing tips, whereby the suction and discharge of liquids is possible by means of the suction-discharge mechanism; a container group having, at the very least, one or two or more liquid housing parts that house amplification solutions used for nucleic acid amplification and one or two or more reaction vessels; a transfer mechanism that makes an interval between said nozzles and said container group relatively movable; a temperature controller whereby temperature control of the interior of said reaction vessels for nucleic acid amplification is possible; a sealing liquid and/or sealing lids housed in predetermined housing parts other than said reaction vessels of the container group that are transportable to said reaction vessels using said nozzles, which make said amplification solutions housed in the reaction vessels sealable within the reaction vessels; and a sealing control part that controls said suction-discharge mechanism and said transfer mechanism, or said transfer mechanism, such that said sealing liquid and/or the sealing lids seal said amplification solution within the reaction vessels when the housing of said amplification solution in said reaction vessels is completed