The embodiment of the invention provides a drilling data processing method and system. The method comprises the following steps: obtaining drilling data to be processed, and setting an output attribute corresponding to the drilling data to be processed; according to an output format in the output attribute, setting a corresponding hierarchical navigation identifier tree; establishing an association relationship between the drilling data to be processed and the hierarchical navigation identifier tree; and on the basis of the association relationship, displaying the drilling data to be processed on a node position corresponding to the hierarchical navigation identifier tree by the corresponding output attribute. The technical scheme provided by the embodiment of the invention can greatly improve drilling data disposal and analysis efficiency so as to optimize a drilling development scheme and improve the recovery ratio of an oil deposit.