The persistent presence of pesticides in agricultural runoff is a significant ecological and health concern, necessitating accurate and efficient detection methods. This study aims to develop an innovative electrochemical sensor array for the selective detection of various pesticides in water samples drawn from agricultural environments. A combination of advanced nanomaterials, including graphene oxide and metal-organic frameworks, was used to enhance the electrochemical response of the sensors. Cyclic voltammetry and differential pulse voltammetry techniques were employed to calibrate and validate the sensor's performance. The study found that the developed sensors exhibited high sensitivity and selectivity, with detection limits as low as 0.1 µg/L for several common pesticides. These results suggest that the sensor array can effectively be applied for real-time monitoring of pesticides, offering a robust tool for environmental protection agencies. In conclusion, the study provides a promising approach for improving the monitoring and management of pesticide contamination in water resources, potentially reducing the ecological impact and safeguarding public health.