Activity Based Costing System is a method that can reduce distortion the cost of occuring in calculation cost accounting traditional. Distortion cost happened to cost accounting for on traditional accounting system traditional cost using only one cost driver so that of unit produced as a base determine how overhead a product. This study attemps to been given cost accounting traditional in determining the cost of good production and been given Activity Based Costing System in determining production. This research using methods descriptive the case study located in CV. Indah Cemerlang Malang. The result of this research shows that calculation occuring difference between traditional cost accounting with Activity Based Costing System, paving stone suffered overcosting Rp.16.952.888 , batako suffered undercosting Rp.11.067.402, and beton buis suffered undercosting Rp.5.172.403. CV. Indah Cemerlang expected to replace cost accounting traditional method with the Activity Based Costing System the calculation more accure compared with the cost accounting traditional and can help management in this matter.