A gene analysis method which comprises extracting a target nucleic acid from a biological sample (23), amplifying target DNA, supplying a reaction liquor (L) containing definite DNA into solid phase DNA probes (53) aligned in series or in parallel at a definite temperature and separating DNA complementary with the solid phase DNA probes, wherein a plural number of solid phase DNA probes, at least part of which can be controlled at the double-strand forming temperature of the test DNA, are provided and a reaction liquor containing the same or different DNAs after the amplification is supplied into the solid phase DNA probes.