Method for judging underground water contained in stratum

The invention provides a method for judging underground water contained in a stratum, relates to the technical field of oil exploration, and is used for judging whether underground water is contained in the stratum or not. The method comprises the following steps: determining a plurality of sampling times; obtaining a plurality of to-be-detected water samples; determining a first parameter value of each to-be-detected water sample and a second parameter value of each to-be-detected water sample; obtaining a plurality of standard water samples; determining a third parameter value of each standard water sample and a fourth parameter value of each standard water sample; establishing a coordinate system, and determining a plurality of to-be-measured points; determining a plurality of standard points; determining a standard area; and when each to-be-measured point is located in the standard area, or when at least one to-be-measured point is located outside the standard area, and when the to-be-measured point is gr