The study focused on evaluating the developed E-Trading Application for Rice Farmers in the Province of Oriental Mindoro, which aimed to improve the quality of selling the products in the market. The evaluation was based on ISO 25010 in determining the performance of the E-Trading Application for Rice Farmers in the Province of Oriental Mindoro, using the five (5) criteria, which are functional suitability, performance efficiency, usability, reliability, and security. The development phase used the developed E-Trading Application for Rice Farmers in the Province of Oriental Mindoro. The Waterfall Software Development Life Cycle Model involves gathering requirements, analysis, design, code, test, and user acceptance. The respondents evaluated the performance of the E-Trading Application for Rice Farmers as Effective. The results, using a t-test, showed that there is no significant difference between the evaluation of the rice farmers and IT practitioners in the performance of the E-Trading Application for Rice Farmers. The E-Trading Application for Rice Farmers was developed using the different stages in the Waterfall methodology. No significant difference exists in the evaluation between the rice farmers and IT practitioners on the developed E-trading Application as to functional suitability, performance efficiency, usability, reliability, and security. The E-Trading Application was recommended to the entire region of MIMAROPA for implementation to cater to more farmers and consider the respondents' suggestions to further improve the application.