Because of global warming, global temperature such as greenhouse effect is rising every year. Increasing temperature will have a pernicious impact on the reproductive rate, population and habitat of the insects. As the temperature rises, the abundance of algae and plankton creates an optimal environment for the insects to reproduce. Because of the larvae and carcas of midges, micro disk filter in filtration facilities are blocked. The SS treatment efficiency has been reduced by the blocked membrane, which leads to a blurred discharge water, causing difficulties in maintenance of the treatment process. It was treated with pesticides that contain chemicals to prevent mass reproduction, but they have a huge adverse effect on the ecosystem. To solve this problem, an insect collector using 365 nm, UV LED lamps was designed in an environmentally friendly way using the properties of multi-faceted. The effect on the water flow of the filtering facility was using the properties of multi-faceted. The effect on the water flow of the filtering facility was analyzed by capturing and removing insects according to temperature and humidity changes through the installation of insect collector at the T-P treatment facility. The over-replicated carcass were captured using eco-friendly devices without the use of chemicals. The midges captured by device reduced the membrane obstruction of the filtering facility, resulting in a 69% increase in SS removal effciency, and were effective in improving the overall discharge water of the facilities. Key words: Gloal warming, Midge, UV lamp, Insect collector, Collecting method