We performed a sample of O- and B-eclipsing binary stars in OB-association regions and obtained the preliminary list of 147 binaries in 45 OB-association regions. We tried to elucidate the question whether (or not) the close binaries belong to corresponding OB-associations, from the commonness of their proper motions, radial velocities and distances. Based on the completeness of the data,the binaries are decided into three groups and the scheme for calculation of degree of belonging of stars to OB-associations is developed. Necessary data are not available for nine systems and they are given in a specific table. For 12 cases, the binaries project onto the regions of two associations. We show that 33 (22.3 %) close binary stars are members, 65 (43.9 %) are probable members and 39 (26.4 %) are less probable members of the OB-associations. We find that 11 binaries belong to the Galaxy background. The comparison of the distributions of orbital periods for the binaries in OB-associations and for O-, B-binaries of the Galaxy background shows their considerable differences in the vicinity of the two-day period.