The teachers' personnel changes of the primary and high schools in T metropolitan area are analysed in this paper from the point of view of the teachers' Alma Mater. The reason why their “Alma Mater” became a subject in this paper is that the teachers' personnel changes seem to be influenced by their alumni associations organized by the teachers. This paper is a part of the research on the academic cliques (gakubatsu) which has come to be questioned recently. For this study are selected and analyzed 576 teachers of the primary schools and 855 of the high schools in comparison with the total teachers.<BR>The main results of the analysis are as follows:<BR>(1) The formal organization of their personnel changes is divided into two patterns; that is, the one is the organization of the primary school personnel and the other that of high school teachers. In the case of the former, the organization is formed as the permeation of the personal relations into them apt to be checked. out, but the function of its inferior units seems to be influenced by such relations based on the teachers' Alma Mater and private connections. In the latter, the function of the organization seems to be more permeated by the personal relations as compared with the former, because the principals keeping the daily contacts with the teachers have more power to change the teachers personnel.<BR>(2) On the whole, the teachers who belong to the big alumni associations have many opportunities to transfer to other schools, and these groups keep the high rate of personnel changes as compared with the minority groups. Particulary this tendency is clear in the case of high schools.<BR>(3) Generally many members of the big alumni associations are disposed to good schools, and this biased tendencies are not broken down by the periodical transposition of personnel. Especially in the high schools the members of the big alumni associations tend to move to good schools.<BR>(4) Finally both in the primary and high schools, there are big two alumni associations, and the members of these organizations tend to be exclusively disposed at their respective schools.<BR>These tendencies are certainly explained by the analysis on the following two points. The one is the analysis on the consciousness of “being alumni” and reali-stic needs to be promoted, acquire the prestige. The other is the analysis on the structures and functions of these alumni associations, based on these consciousness and needs and formed in the formal organization of education. It is very difficult to collect the data about the functions of the organizations of teachers' personnel changes, particulary about the dynamics of alumni associations having a tendency to form academic cliques (gakubatsu). The research is now being continued.