T he purpose of this observation is to examine regarding influence Supply Market Scaning toward Internal Integration , internal integration toward supplier integration, supplier integration toward supplier performance and Internal Integration toward Supplier performance. Data collection techniques method is purposive sampling. The data in this study obtainable by spread of total 30 respondents which work in Purchasng, Finance, Accounting and Warehouse division. Hypothesis testing was used as research design. While the analysis tool used is SPSS by using simple regression method. The result of hypothesis testing shows there is effect between Supply Market Scaning toward Internal Integration, there is effect between internal integration toward supplier integration, there is effect between supplier integration toward supplier performance, and there is effect between internal integration toward supplier performance in PT Indoaluminium Intikarsa Industri KM24 Cibitung. The result of this study can be used as a considerations by manager for improving the relationships between suppliers in order to make a better supplier performance.