Astronomy is the science based on the observing data. The 2.4 meters telescope of Yun Nan Observatory is the largest optics telescope in China or even in East Asia as yet, so its observing data play an important part at the development of astronomy. So far from 10/2008, the accumulated raw data of observing have reached about 600GB. It is very difficult to get the details of observing data satisfying some conditions only through manual work from so much data. In order to improvement efficiency of the astronomers and save their time of collecting data, it is necessary to develop the 2.4m data management system. Data management system is not only the powerful tool to manage and mine data, it is also an application fundament of the remote observing and the virtual observatory in future, so it takes the fundamental and foremost position. This article has designed the preliminary frame of the 2.4m data manage system including the basic functions(such as the data of archiving, querying, managing and maintaining). Now it can running stably through some testing before. Later on I will complete some functions of detail and entirety step by step. The 2.4m data manage system as the part of 2.4m remote observing system, can realize the function of auto-archiving. In addition, it also provides the past-observing data to share, including the functions of data querying and downloading. This article has also basically realized the function of remote data-replicating. For that matter, we have reinforced the security of the observing data further more. This article mainly consist of four parts: First of all, it introduces the background of astronomy, remote observing system, and the virtual observatory Second part introduce primary designs about the 2.4m data manage system and the remote observing system Third part introduce the realizations of the 2.4m data manage system and some results of the remote observing system Finally, it is the summary of the article and the outlook of the future
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