This paper dealswith the molecular structure of methane hydrate, the phase equilibrium, and the digging technique. Italso introduces the current research on the digging and exploitation of the newsource of energy-meth-ane hydrate in such countries as Japan and the United States.

Basic conceptand contentsof the chemoinformaticswere introduced, and a teaching systembased on internet for chemoinformaticswas developed. The systemwas developed mainly by HTML and can be browse by a general browser such as Netscape or Internet Explorer (IE). The system can be easily used by instructors for classroom instruction and by students for for home work processing.