The invention relates to the field of geoscience modeling, in particular to a geoscience dynamic modeling method and system, and the method and the system are characterized in that the method comprises the steps: S1, carrying out the data processing of original data, and editing the original data into geoscience dynamic modeling source data; S2, performing distributed dynamic modeling on the obtained modeling source data through a modeling algorithm; S3, directly using a model obtained through distributed dynamic modeling for analysis and application; or carrying out the next step S4; s4, through expert analysis and verification, if the precision of the established model meets the requirement, exiting and using the model for analysis and application; and if not, returning to the step S1 tocarry out data processing again, and carrying out modeling again. According to the method, the modeling data volume is reduced, the modeling efficiency is improved, the modeling period is shortened,and the model updating difficulty is reduced.