The purpose of this study was to evaluate the primary distribution disturbance based on the causes of failure in the 2019 primary distribution at UP3 Menteng. This study used a descriptive methods with quantitative approaches. The number of disruptions, and causes of failure are collected from UP3 Menteng during 2019, then processed, analyzed and evaluated to making the conclusion. The all failures variables have a very strong correlation with the disturbance in the primary distribution. However, there are the four most greatest number (over than 10% of failures) of primary distribution disturbances in UP3 Menteng caused by jointing medium voltage’s cable with 40 percent failures, destruction external projects with 31 percent failures, underground medium voltage’s cable with 17 percent failures, and consumer’s installation load with 12 percent failures.