In spite that the stage model of organizational socialization has been recognized as theoretically valid, little empirical support has been presented. The purpose of this study is:(1) to discuss the concepts, stage, variables, and propositions of the stage model, especially of Buchanan and Feldman, (2) to develop an integrated stage model based on two models above, and (3) to reveal its empirical validity. Based on the integrated model, a questionnaire survey was conducted with 292 subjects' self-report answers. Results yielded that:(a) the stage model with three substages was founded based on two kinds of variables, and five hypothetical propositions, (b) empirical substantiation of integrated model was found more sufficiently acceptable, than in case where either one of them was tested in each original reseach, (c) one of the theoretically based propositions appeared to be questionable to preserve qualified empirical verification. Implications for future reseach were proclaimed concerning the methodological limitation of this study and the existence of “U-Shaped” accomplishment pattern of socialization tasks among employees' tenure.