This study assesses pesticide residues in mango samples collected. It finds out pesticide residues in compliance with Joint FAO/WHO Codex Alimentarus Commission maximum residues limits (MRLs) for pesticide residues. This also evaluates the economic impact of sanitary and phytosanitary (SPS) measures (pesticide residues) on the Pakistan’s mango export. The study used both primary and secondary data. Secondary data from 1990–2012 for mango production, domestic consumption, domestic price, FER, and export quantity were collected from Pakistan Economic Survey, Fruits and Condiments Statics of Pakistan, Agriculture Statistics of Pakistan, National Trade and Transport Facilitation Committee (NTTFC), and Food and Agricultural Organization Statistics (FAOSTAT, 2001).Whereas the Primary data of pesticide residues data was generated in Ecotoxicology Research Institute, National Agriculture Research Centre (NARC), Islamabad. Mango samples (primary data) were collected from orchards in Multan and Muzafargarh, the main mango growing areas in Pakistan. Data was analyzed through laboratory experiment and regression analysis. It was found that about 78% of the samples being analyzed were containing pesticide residues to varying levels out of which 67% were above the Codex Maximum Residual Limits (MRLs). Three pesticides viz. chlorpyrifos, endosulfan and profenofos were exceeding their MRLs. It has been observed that both domestic consumption and domestic price have significantly negative impact on export quantity of mango by a factor of 0.0017% and 0.00046% respectively. Moreover, every unit increase in mango production lead to 0.0017% increase in export quantity of mango. The co-efficient of FER was found as 0.021 showing that every one unit change in FER in the international market, the export quantity increases 0.021% in the same direction. It has also been observed that mango export is negatively impacted by SPS (Sanitary phyto-sanitary measures) measures. The results show that strict SPS measures are decreasing our trade. Although its coefficient is statistically insignificant this may be due to the relaxed regulations of the current importing countries. However, it can be argued that mango exports to EU countries will be more negatively influenced because of their stringent regulations. Therefore, Pakistan should improve food checking on priority basis, especially in bundles with exporters and promote Good Agriculture Practices (GAP). Pakistan must work seriously to qualify food safety and quality compliance demands. Establishing food testing standard and inquiry infrastructure on significance basis, especially in collabration with exporters. Moreover, the exporters who target high value markets and seeks certifications like ISO 14000, EurepGAP, HACCP and ECO Labeling should be fully sponsored, at least for a specified period of time. Supervisor:- Dr. Anwar Hussain