An analytical method using a nucleic acid microarray comprising two or more spots, the nucleic acid microarray having a spot X 1 onto which a first probe nucleic acid is immobilized, the method comprising: allowing a labeled sample nucleic acid A 1 of a sample to be tested to hybridize with the first probe nucleic acid immobilized onto the spot X 1; providing the spot X 1 with a labeled verification nucleic acid B that has a sequence capable of hybridizing with at least a part of the first probe nucleic acid and is labeled with a label different from the labeled sample nucleic acid A 1, and allowing the labeled verification nucleic acid B to hybridize with at least the first probe nucleic acid, wherein the verification nucleic acid B is further capable of hybridizing with at least a part of the probe nucleic acid on all of the spots; measuring a labeled quantity value F 1 of the labeled sample nucleic acid A 1 hybridized on the spot X 1; and measuring a labeled quantity value Fc 1 of the labeled verification nucleic acid B hybridized on the spot X 1, the method further comprising: providing a spot X n onto which an n th probe nucleic acid is immobilized having substantially the same sequence of the first probe nucleic acid immobilized onto the spot X 1 with a labeled sample nucleic acid A n which is identical to or different from the labeled sample nucleic acid A 1, and allowing the labeled sample nucleic acid A n to hybridize with the n th probe nucleic acid immobilized onto the spot X n, the spot X n being present on the same nucleic acid microarray of the spot X 1 or an another nucleic acid microarray; providing the spot X n with the labeled verification nucleic acid B, and allowing the labeled verification nucleic acid B to hybridize with at least the n th probe nucleic acid; measuring a labeled quantity value F n of the labeled sample nucleic acid A n hybridized on the spot X n; and measuring a labeled quantity value Fc n of the labeled verification nucleic acid B hybridized on the spot X n, wherein a corrected labeled quantity value which corresponds to a hybridized amount of the labeled sample nucleic acid A n on the spot X n is calculated by using the following formula: formula; corrected labeled quantity value of the labeled sample nucleic acid A n = the labeled quantity value Fc 1 / the labeled quantity value Fc n x the labeled quantity value F n of the n th labeled sample nucleic acid A n, wherein n is an integer of 2 or more, wherein a nucleic acid containing a repeated sequence is used as the labeled verification nucleic acid B. allowing a labeled sample nucleic acid A 1 of a sample to be tested to hybridize with the first probe nucleic acid immobilized onto the spot X 1; providing the spot X 1 with a labeled verification nucleic acid B that has a sequence capable of hybridizing with at least a part of the first probe nucleic acid and is labeled with a label different from the labeled sample nucleic acid A 1, and allowing the labeled verification nucleic acid B to hybridize with at least the first probe nucleic acid, wherein the verification nucleic acid B is further capable of hybridizing with at least a part of the probe nucleic acid on all of the spots; measuring a labeled quantity value F 1 of the labeled sample nucleic acid A 1 hybridized on the spot X 1; and measuring a labeled quantity value Fc 1 of the labeled verification nucleic acid B hybridized on the spot X 1, the method further comprising: providing a spot X n onto which an n th probe nucleic acid is immobilized having substantially the same sequence of the first probe nucleic acid immobilized onto the spot X 1 with a labeled sample nucleic acid A n which is identical to or different from the labeled sample nucleic acid A 1, and allowing the labeled sample nucleic acid A n to hybridize with the n th probe nucleic acid immobilized onto the spot X n, the spot X n being present on the same nucleic acid microarray of the spot X 1 or an another nucleic acid microarray; providing the spot X n with the labeled verification nucleic acid B, and allowing the labeled verification nucleic acid B to hybridize with at least the n th probe nucleic acid; measuring a labeled quantity value F n of the labeled sample nucleic acid A n hybridized on the spot X n; and measuring a labeled quantity value Fc n of the labeled verification nucleic acid B hybridized on the spot X n, wherein a corrected labeled quantity value which corresponds to a hybridized amount of the labeled sample nucleic acid A n on the spot X n is calculated by using the following formula: formula; corrected labeled quantity value of the labeled sample nucleic acid A n = the labeled quantity value Fc 1 / the labeled quantity value Fc n x the labeled quantity value F n of the n th labeled sample nucleic acid A n, wherein n is an integer of 2 or more, wherein a nucleic acid containing a repeated sequence is used as the labeled verification nucleic acid B. formula; corrected labeled quantity value of the labeled sample nucleic acid A n = the labeled quantity value Fc 1 / the labeled quantity value Fc n x the labeled quantity value F n of the n th labeled sample nucleic acid A n, wherein n is an integer of 2 or more, wherein a nucleic acid containing a repeated sequence is used as the labeled verification nucleic acid B.