With the smart grid construction and improvement of voltage levels, partial discharge has become a power transmission equipment particularly important reason for the high-voltage electrical equipment dielectric aging, thus partial discharge detection and quantitative assessment of the insulation monitoring studies media has become a key condition. In this paper, to build a new UV Discharge Monitoring System, discharge equipment proposed to characterize the physical state of the discharge, in order to quantify the number of photons intensity discharge, further quantitative assessment and prediction of equipment insulation equipment life. Effective solution for early discharge is difficult to quantify measurement, no judgment standard equipment upgrades puzzle. Calculated by simulation and testing of integrated systems, the system can monitor the real-time voltage electrical discharge and determine the intensity discharge, the feasibility and effectiveness of this method. Research in the field of partial discharge UV detector has a certain theoretical significance, for the safe operation of power systems and power transmission equipment to achieve online monitoring provides an effective solution, UV detection criteria for the establishment of a foundation.