Abstract: Facing the rapid development of computer technique,it is an universally concerned problem by seismological workers how to last the life period of earthquake information system as far as possible so as to make the limited investment to obtain more beneficial result in a long time.By producing the practice of construction and maintenance of Hebei provincial earthquake information system(HBEIS)and the obtained result,this paper has expounded the basic principles which should be followed in various stages of the system planning design,concrete implementation,applied development and maintenance management.