This research aimed to develop a pheromone-based smart mosquito trap for reducing the regional and temporal occurrences of mosquito-transmitted pathogens. The study was mainly concerned with killing mosquitos in a very large area without negatively impacting the physical health of living beings. The device was constructed from a 5 mm thick acrylic sheet and includes several mosquito-attracting elements, including a heating pad, UV light, CO₂ cylinder, and various pheromones. An exhaust fan and reservoir of sticky substance were used to trap and kill the mosquitos. The CO₂ dispersion and exhaust fan were regulated with time intervals and a controller while other components were in fixed operative mode. Four different pheromone formulationswere prepared and usedin different ratios with varied ranges of reagentsand natural products such as Cyclopentanone, Palmitic Acid, Oleic Acid, Linoleic Acid, Citric Acid, andMushroom Extracts (Shiitake Mushroom & Reishi Mushroom). For successive efficiency and performance test, the device was kept in trial for 8 days, and each day, a different kind of pheromone formulation with varying amounts and without CO₂was used at different areas.The trial showed excellent results by trapping and killing an abundant quantity of mosquitos both in indoor and outdoor operations. In the future, the device will be modified to make it easier to operate by producing all in one solution which will be used in-house as well as in a large open area with solar power. Such a device could be the best choice to kill mosquitos in countries like Bangladesh where mosquito-borne diseases are great concern during a specific season every year.