The amendment process of article 33 constitution 1945 caused push and pull of thinking necessary or not to be amended so there are two groups which are pros and cons diametrically. this amendment produced two additional paragraph in article 33, which is formely two paragraph became five paragraphs, those are paragraph(4) and paragraph (5) are the system of welfare especially in the economic sector, accpeted market fundamentalism appareently the concept of welfare state is confirmed in the additional of social-economic articles, namely in article paragraph (2) and paragraph (3).
Keyword: welfare state, UUD 1945 Amandement, liberalism dan socialism system.

        Kata kunci: welfare state, UUD 1945 Amandement, liberalism dan socialism system