Based on the analysis of the hydrogeological characteristics of the urban area of Putian City, the division of hydrogeological units was conducted. The current situation and distribution characteristics of groundwater quality were analyzed by using fuzzy comprehensive evaluation method. The result indicates that the Putian City groundwater quality is generally poor, which is basically consistent with the actual situation of local groundwater. The distribution characteristics of groundwater quality for Mulan River downstream and corresponding estuary are extremely poor, while along the coastline and midstream of Mulan River are very poor, but for far away from the coast line or mountain areas gradually become well.