A genetic analyzer for measuring and analyzing an amplification reaction of a nucleic acid in real time, the genetic analyzer comprising: a control section for holding a plurality of conditions for detecting the amplification reaction and a plurality of conditions for terminating the amplification reaction; an input section from which the control section receives an input; a display unit for displaying analysis conditions of the nucleic acid amplification for selection through the input section; wherein the control section is arranged to: judge the presence or absence of amplification before a predetermined measurement completion time, when amplification is detected, display on the display unit the analysis conditions for: (i) terminating the amplification reaction instantly, (ii) continuing measurement until the predetermined measurement completion time and then terminating the amplification reaction, and (iii) continuing the amplification reaction for a desired time and then terminating the amplification reaction receive as an input from the input section one of the analysis conditions displayed on the display unit that has been selected by a user as a condition for terminating the amplification reaction, perform a process for terminating the amplification reaction automatically in accordance with the analysis condition selected by the user as the condition for terminating the amplification reaction; when the amplification reaction is terminated, display on the display unit conditions for selecting: (i) performing melting analysis or high resolution melting analysis as the next processing, (ii) performing thermal denaturation as the next processing, and (iii) discarding the reaction vessel as the next processing; receive as an input from the input section one of the conditions displayed on the display unit that has been selected by a user as desired next processing; wherein the next processing is performed automatically by the genetic analyser in accordance with the one of the conditions displayed on the display unit that has been selected by a user as desired next processing. a control section for holding a plurality of conditions for detecting the amplification reaction and a plurality of conditions for terminating the amplification reaction; an input section from which the control section receives an input; a display unit for displaying analysis conditions of the nucleic acid amplification for selection through the input section; judge the presence or absence of amplification before a predetermined measurement completion time, when amplification is detected, display on the display unit the analysis conditions for: (i) terminating the amplification reaction instantly, (ii) continuing measurement until the predetermined measurement completion time and then terminating the amplification reaction, and (iii) continuing the amplification reaction for a desired time and then terminating the amplification reaction (i) terminating the amplification reaction instantly, (ii) continuing measurement until the predetermined measurement completion time and then terminating the amplification reaction, and (iii) continuing the amplification reaction for a desired time and then terminating the amplification reaction receive as an input from the input section one of the analysis conditions displayed on the display unit that has been selected by a user as a condition for terminating the amplification reaction, perform a process for terminating the amplification reaction automatically in accordance with the analysis condition selected by the user as the condition for terminating the amplification reaction; when the amplification reaction is terminated, display on the display unit conditions for selecting: (i) performing melting analysis or high resolution melting analysis as the next processing, (ii) performing thermal denaturation as the next processing, and (iii) discarding the reaction vessel as the next processing; (i) performing melting analysis or high resolution melting analysis as the next processing, (ii) performing thermal denaturation as the next processing, and (iii) discarding the reaction vessel as the next processing; receive as an input from the input section one of the conditions displayed on the display unit that has been selected by a user as desired next processing;