Based on the analysis of the Earth science General Projects of National Natural Science Foundation of China (NSFC) between 1990-2004, this paper addressed some key finding about the fund characters of the NSFC in the field of Earth science: (a) The quantity of the request projects is increasing from 1656 to 3247. The increase speed has been quickened since 2001 by the rate of 13.68%. The Earth science researchers have taken the National Natural Science Foundation as the most important fund channel of scientific research. (b) The average fund intensity of the Earth science general projects is enhanced from 48 400 Chinese Yuan to 300 300 Chinese Yuan per project by the increasing rate of 14.15% per year. (c) The rate of the funded project is in the level of 21.92% of all the request projects. In the last five years(2000-2004), this rate has increased to 23.64%. (d) In all the kinds of the General Projects, the Free Application Projects are the most important part, which occupies 76% of the amount of all the funded projects. The project of Young Scientists Fund occupies 20%, and the last 4% is for the project of Less Development Regions Fund.