It is difficult to reflect the internal differences of different majors by the statistical calibre of employment rate. The micro-structure of employment distribution is an intuitive reflection of the integration of supply and demand of graduates. Employment data of undergraduates majoring in WaterSSupplySandSDrainageSScience SEngineering in Zhongkai University of Agriculture and Engineering from 2011 to 2018 were selected as samples to classify and count the total employment rate, geographical distribution, starting salary range, unit Properties, occupation type, industry category and professional correlation, and to analyze the changing trend from 2011 to 2018, and to compare with the same indicators in the nationwide and province wide. The results show that the overall employment situation maintainSaSgoodSmomentum inSrecentSyears,Sthe employment rate of water supply and drainage graduates of Zhongkai University of Agriculture and Engineering exceed 94% each year,and over 70% graduates take to professional counterpart work. In terms of geographical selection, Guangzhou and Pearl River Delta prefecture-level cities are the main areas. More than 70% graduates devote themself to design and construction occupations, and over 50% go in for construction＆municipal industry. The graduates engaged in non-traditional industries increased year by year. However, there are also multitudinous defects that mainly reflected in: The ratio of graduates employed in micro enterprises or employedSunder prefecture-level cities is inadequate, which does not match the orientation of personnel training in serving the countryside. Employment competitiveness remains weak, which reflected in the probationary salary is lower than the average level of national and Guangdong Province,and few graduates were employed in top 500 enterprises. More than 50% SgatheredS in the construction industry and less engaged in modern service industry, which is not consistent with the changes of national industrial structure, which imply that employment risks are going to occur in the future with the transformation and upgrading of the economic model.