The succession is Taiwan's in 1986 (75 years) under the martial law authority system, the aboriginality democratic progressive party's in at the end of fall the beginning of winter (9/28) date, just happene to meet atthat time the Kuomintang being in power authority ountedscout densely covered with under the atmosphere which withered finally to establish. This is the organizational structure which loose has notoperated the rudder from non-party time each place enters into officiallyby the central party committee political party essence institution operation start, previously like the mushroom growth various places non-partyorganization also one after another one after another reformed the beingestablished development, and by place standing organization institution(party committee) the state has opened in our country democraticinstitutions the party politics competition. Democratic progressive party place county municipal party headquarters party duty director is situated the strategic point, actually the political party stationing in various places county city party organization institution's actual person in charge, has the strong party spirit and theshoulder political party develops the place politics domain the mission,and holds superiority of the county municipal party headquarters partyresources utilization.The present paper the theory surface which will study by heavy practice surface matching analyzes it, place county municipal party headquarters party duty director will have the system stable really tobe supposed take Democratic Progressive Party's in system lengthwisesection and the non-system surface cross section of as the elaboration axlecenter. System surface: Such as the place party committee sets up the means, the county municipal party headquarters organizes the regulations, the party duty personnel to elect the means, the county municipal party headquarters fourth, five kind of public official elects the nominationmeans or the party member year to year party dues captures depth contents and so on the means and financial control rule, has the system by viewparty duty director to stabilize rests on what. Non-system surface: Then iscontinual by the cross section, such as and pocket party member wealthyand powerful family (foot of pile) transportation and maintenance, rulingcounty city and non-ruling county city time party duty director and countymayor like for same clique either homogeneity of or difference non-sameclique its interaction situation or the role acting why? But other each kindof public service mover or is the coordination also can accept regardingthe party duty director's direction? Furthermore, with for the party dutynational party representative, the county city party members representsand holds comments committee member to link party duty director to havethe system to have what influence and the subtle relations stably. Moreover, these perform its own functions each kind of party duty mover duty department revises the rules and regulations in particular thenational party representative nearly has also not acted must revise changesparty duty director to have the system.If is by the view, above these manymay affect party duty director to produce the system party duty moverreally little to change this system the fact result, is opposite by the word,but ¡§the rational choice system theory¡¨ the viewpoint not also talliesappears party duty director to have the system stable relative most majorcharacteristic even more suddenly. Your in the recent several dozens years, no matter is the East and West world national laws and regulations or the article, also perhaps in anynational big enterprise, the small organization or the political party and the association and so on, its internal custom, the means or the main point, allseek the change and between the transformation activation voice in onepiece, but noisy changes changes does not have set of flawless full easy touse well-mannered systems to be satisfying. In this, production of take thedemocratic progressive party place party duty director as the example,strengthens the system stable invariable usability, even more may verify isthe question which the system custom transforms, but is the stable systemperformer or the influence system stable mover, all takes it by the rationalchoice to oneself's advantageous, determinism and may grasp on fairly,fair, openness, urges place party duty director to have the system stably toexist truly.