Data constitute the foundation of a system. Correct data can give true information, whereas wrong data can misdirect the customer, resulting in heavy losses. When a system is built, we must first guarantee the correctness of the data. This paper deals with the means for data quality inspection in the aerogeophysical database system. Based on analyzing data characteristics and system requirement, the authors designed a different check means. With this means, the data are neither redundant nor insufficient, and thus the data integrity and validity can be ensured.