Abstract: Cypermethrin insecticide was used in summer country bean for controlling pod borer infestation. During application this toxic insecticide not goes only target site but also goes other non target site including soil and environment. Chemodynamical field research was conducted to measure the application loss of cypermethrin insecticide in summer country bean ecosystem and residue was measured from fruit and soil sample to seek of consumer’s safety and environmental health. During cypermethrin application by knapsack sprayer, the highest deposition was recorded in target site (Plant) at 105 Days After Sowing (DAS) (59.7±3.4%) and the lowest at 45 DAS (48.8±2.6%) of summer country bean. The drift loss of cypermethrin through air ranged from 3.9±0.3 to 7.1±0.1%. The highest drift loss through soil found at 45 DAS (47.3±2.6%) and lowest at 120 DAS (35.5±0.1%) aged crop. Cypermethrin residue was determined from fruit and soil sample sprayed at 1 mL L‾1 of water in the field and residue obtained (0.170 ppm) up to 7 Days After Spraying (DAS) and (0.501 ppm) up to 5 DAS, respectively and the quantities were above the Maximum Residue Limits (MRLs) up to 5 DAS (0.531 ppm) in fruit sample and in soil samples all the values were above MRL.