The invention provides a multi-sample combination method for detecting crystal orientation distribution. The method comprises the following steps: (1) selecting a plurality of samples at different parts of a steel plate; (2) processing the samples into a plurality of rectangular steel sheets in the same specification, stacking the rectangular steel sheets in a pole figure measurement sample rack and fastening, polishing and corroding the rectangular steel sheets to form R.D section samples; (3) measuring three imperfect pole figures (110), (200) and (211) of the R.D section samples; (4) computing an ODF (Orientation Distribution Function) figure by utilizing the conventional ODF software and acquiring Phi, Phi1, and Phi2 of a Bung coordinate system or Theta, Phi and Psi of a Roe coordinate system; and (5) utilizing the formulas (a) and (b) of the Bung coordinate system or the formulas (c) and (d) of the Roe coordinate system to compute the texture. The multi-sample combination method can reflect the crystal orientation condition of the samples in the whole thickness and has strong representativeness; for a laboratory with conventional ODF analysis software, specially planning or purchasing ODF software for computing the cross sections combined by dozens of samples is not needed, so that the use is convenient; and for a laboratory without the ODF analysis software, the only requirement is to plan or purchase the conventional ODF software, so that the cost is lower.