PT. Nutech Pundi Arta is a company engaged in automotive interior industry. This company deals directly with some suppliers on hardboard material. During this companies often experience problems related to the performance of suppliers such as delivery delays and quality mismatches that have been agreed by the company. Assessment of supplier performance is important to do in PT. NPA so that supplier performance can be controlled and improved so it does'nt disrupt the continuity  of the company's production. The purpose of this research is to identify and determine the weight of criteria and subcriteria of supplier performance and to get supplier performance rating using Analytic Network Process (ANP) method. The result of the criteria weight were quality (0.20402), cost (0.15984), delivery (0.20764), flexibility (0.13405), responsiveness (0.15272). The result of subcriteria weight were the amount  of Goods Reject (0.10741), Provide Guarantee (0.09663), Price Comparable to Quality (0.08226), Payment Method (0.07757), Accuracy of Delivery Schedule (0.10348), Accuracy of Goods Sent (0.10415), Change of Order Volume (0.07058), Change of Delivery Time (0.06347), Response Speed to Complaint (0.07947), Ease of Contact (0.07324). The results of performance assessment of hardboard material suppliers that  obtained from the highest order to the lowest are  PT. RMA (0.050053), PT. A (0.047198), PT. GCI (0.04444).