In order to evaluate the groundwater environment vulnerability accurately and objectively， this paper establishes an evaluation model based on the extreme learning machine，taking the groundwater environment in the study area as an example to conduct the groundwater environment vulnerability assessment in the study area.The evaluation results of the model in this paper are compared with the evaluation results of fuzzy comprehensive evaluation method，improved BP neural network，drastic and weighted average method.The results show that the evaluation results in this paper are reasonable and can provide a certain reference for groundwater environment vulnerability assessment in regions with sufficient data.