This study was to investigate how the effectiveness of financial ratio analysis and financial ratios are used to assessing the success of the financial performance of PT.Pembangkit Jawa Bali-Surabaya according Assessment Criteria Decision of the Minister of State Enterprise No.KEP-100/MBU/2002. By using quantitative and technical analysis of the data according to the Decree of Minister of State-Owned Enterprises No.KEP-100/MBU/2002 and trend analysis. The results of this study indicate financial ratio analysis to assess the prformance of SOE in PT. Pembangkit Jawa Bali-Surabaya in 2013 was at 24,8 in year 2014 is 25,7 and in 2015 20,7. The total score interpolated by the interpolation value in 2013 is 49,6 with the healty category and the tittle of AAA. In 2014 the company experienced an increase if 51,4 interpolation with healthy categoryand tittle of AAA, and in 2015 the company decreased 41,4 interpolation with healthy and predicates AA category. The research result are based on the Decree of the Minister of State-Owned Enterprise No.KEP-100/MBU/2002 in terms of finance PT. Pembangkit Jawa Bali-Surabaya period 2013-2015 in the category Healthy and a good Rating.