Strong karstlize effect forming surface and underground double-space structure in karst area, what resulting
groundwater systems are extremely sensitive to outside interference. This article mainly focuses on the vulnerability assessment
of karst groundwater, proposing that the vulnerability assessment of karst groundwater should be considered
from three perspectives: the inherent vulnerability of groundwater, the vulnerability of the ecological environment and
water resources carrying capacity, and selecting 19 indicators based on it, establishing the index system and evaluation
method of groundwater vulnerability assessment in karst area combines with Analytic Hierarchy Process. The article apply
the evaluation method to evaluate groundwater vulnerability of typical karst area—Weining county, China. The study
can provide certain reference for the groundwater vulnerability assessment in similar karst area.