| With the fast development of the geodetic engineering information in our country, study the service system which is founded base on the multi-resource gravity field's data services, by which the gravity data can be saved, processed, distributed and applied. Not only can the study of gravity field be helped, but also accord with the development of geodetic engineering information by the study. Multi-resource gravity field's data services and its application are studied in this paper, which is based on the aim of the gravity field information and the study of the gravity field data. The main work is summarized as follow:1. The characteristic of gravity field data is studied and classified. The content and property of the each data is discussed which combine the data interface of the data management.2. The process of land gravimetry and marine gravimetry is discussed; the prediction methods of mean gravity anomalies in the different case of data source; the determination of the height anomaly and vertical on any point is studied.3. The data sharing environment of multi-resource gravity field is studied, the data model and the data interface is confirmed. The multi-resource gravimetric database is constructed, and the process of construction, the function of the database and its realization are illuminated.4. Base on the application of gravity data, the usability of Surfer in contouring and interpolation method is discussed, and the function is realized. The method and problem of that process is illuminated.5. The method of gravity data visualization which base on multi-resource gravimetric database is studied. The visual function is realized which the spatial distribution of gravity data and contour map.6. The experiment program of multi-resource gravimetric data service is realized, and the realization of this system and its flow line is illuminated. In that case, the maneuverability of the study in this paper is validated.
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