The contents of 16 kinds of organophosphorous pesticides(OPPs) were detected using the method of gas chromatography(GC) in vegetable,fruit and foodstuff so as to understand the residues and distribution of OPPs in farm products in Guangzhou.50 samples were detected and 96.0% of the samples were found to be with OPPs residues.The detected rates were 96.8% for vegetable,100% for fruit and 80.0% for foodstuff.The total exceeding rate for each component of OPPs in 50 samples was 36.0%,and the exceeding rate was 41.9%,21.4% and 40.0% for vegetable,fruit and foodstuff.The highest exceeding rate of 32.0% was found in malathion among 16 kinds of OPPs.The residue of sumithion was detected to be 1308.7μg·kg^-1,the highest average residue in OPPs in farm products,followed by phoxim and methamidophos,the residues of which were 970.1μg·kg^-1 and 737.6μg·kg^-1.It suggests that correct guidance and supervision in the application of OPPs in agriculture are necessary.