The purpose of the research aims to examine effects of water hyacinth (Eichhornia crassipes) on surface water environment of Tran Van Dong canal in Go Cong Dong district, Tien Giang province and proposing solutions to make microbial organic fertilizers. In general, there were some water quality parameters such as DO level, organic matters (BOD5, COD) which did not meet National Regulation on surface water quality QCVN 08-MT2015/BTNMT. Based on that, the study has determined the impact of water hyacinth on surface water environment in main flow of Tran Van Dong canal. The results of analysis on fresh water hyacinth from Tran Van Dong canal showed that the water hyacinth was suitable for testing production of microbial organic fertilizers. Besides, the results also showed that the samples of microbial organic fertilizers which made from the water hyacinth after the trying test processeswere eligible to use for agricultural production. Therefore, the necessary to promote the water hyacinth’scollection for producing microorganic organic fertilizer aims to improve the environmental pollution of soil, surface water and locallyproduction activities.