Supplier is one of the most important part in construction service company. To get the best result, it needs the best and quality supplier. One effort to get those supplier is to perform supplier selection, therefore supplier selection is necessary for construction service company. Since many supplier, PT. Cipta Nuansa Prima Tangerang had a trouble in choosing supplier with their respective advantages. The process of supplier selection use AHP (Analytical Hierarchy Process) method, which outline the criteria into the process of comparing alternatives. The greater the value generated, then the main well for those supplier will be chosen. The criterias of supplier selection on PT. Cipta Nuansa Prima Tangerang are delivery, service, product, quality and price. The supplier selection use AHP method with tools Expert Choice and proven with Ms. Excel allow company to support the decision. AHP method is the best solution to be a Decision Support System for solving the problem and contribute management for making decision more objective of supplier selection