宪政体制支配政治权力形成和行使的过程,规范社会政治体制,决定政党政治的状态和作用,同时,政党政治的得失对国家宪政体制成败产生重要影响。以英国议会制两党制、美国总统制两党制、德国"5%条款"多党制和法国半总统半议会制的多党制为例,阐明宪政体制与政党政治之间的内在关系。

The constitutional government system controls the forming and enforcing of politics power,regulates the social politics system,and decides the status and effect to the party government,simultaneously,the party politics' advantage and disadvantage has the important effect to the national constitutional government system's success and failure.Depend on these examples of British Parliamentary System's Two-Party System,the U.S Presidential System's Two-Party System,the German "5% clause" Multiple-Party System and the French Semi-Presidential Government and Semi-Parliamentary System's Multiple-Party System,to clarify the inner logical relationship between both.