The purpose of the present study was to analyze the influence of father's occupation on career choices of their children in connection with children's inheritance of their father's occupation. The subjects were children whose father's occupation has long been either school teacher (n=267), or college professor (n=363), or architect (n=153). The main results were as follows. 1) Compared with the ratios of eldest children choosing any of the three occupations mentioned above other than the father's, those entering the same as their father's weresignificantly high. 2) As for the environmental models as in Holland's theory, the relationships existing between father and son together with father and daughter, was related to his hypothesis. 3) Using the quantification method II as a method of determinant analysis in the process of occupational inheritance, parental expectation and identification, the age of a child and its educational background was found to contribute largely to decide upon its occupational inheritance.