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Efficient application of the information, which is useful for quality control, growing management and field management, is necessary in order to stably supply high-quality agricultural products. We have already reported an easily accessible system, which makes digitization and evaluation of the quality, on the Internet. This system is integrated by Web server, database server and analysis tools programmed by using Java applet. In this work, grapes were selected as the applicable agricultural products. It aimed at the construction of the agroinformatic management system dealing with various information on the crop cultivation. In this system, the database was recomposed in order to integratively manage both the data analyzed by using image and spectra and the data on the growth information, which had been investigated since before. The data class in the analysis tools was redesigned so that the growth data and the analyzed data could be operated uniformly. As the result, it became possible that the database, which consisted of the hierarchical model and the relational model, managed the cultivation information for grape. It was shown that data handling improved by design of a general-purpose data class. Because of the sufficient analytical functions and intellectual evaluation functions, this system was effective enough to manage the cultivation with the information that had not been utilized. Furthermore, the management of various information on the cultivation can be easily conducted on the Internet using this system.