Abstract: 【OBJECTIVE】The paper aims to find out the basic situation of the farmland productivity of Pearl River delta plain, the evaluation of the farmland productivity in Zhongshan city of Guangdong province was investigated.【METHOD】Geographic Information System technology(GIS), fuzzy mathematics method, Delphi method, addition-multiplication and the isometric method were employed for the evaluation.【RESULTS】The results showed that the farmland productivity in Zhongshan has generally increased. The area of high-yield farmland accounted for 42.17% of the total farmland area, and the area of middle-yield farmland accounted for 53.72%, while the area of low-yield farmland accounted for only 4.11%. There are obvious regional differences in cultivated land fertility level in different towns. Multiple cropping and double cropping fields were mainly high-yield fields, whilst one cropping fields were mainly middle-yield fields. The middle and low-yield fields mainly included irrigation-improved type, over sandy or sticky type, barren-fertility type and gley-paddy-field type, among which gley-paddy-field type has the largest area.【CONCLUSION】The evaluation results of farmland productivity accorded with the actual situation. It can not only reflect the basic situation of the farmland productivity in Zhongshan city and guide local agricultural production, but also provide a useful exploration for the evaluation of farmland productivity in pearl river delta plain, and help to improve the local farmland productivity.