Rock classification and nomenclature are the fundamental activities for geological prospecting and geological research. Classification and nomenclature schemes of sedimentary rock (GB/T 17412.2—1998) settles a foundation for the standardization of sedimentary rock classification and nomination. The wide application of computer-aided technology in the field of geology promoted the progress of standardization of rock classification and nomination. The speedy development of Internet not only improved the promulgating speed and mode of information but also made the search and utilization of information more shortcut and easier. The authors discussed the solution schemes for the computer-aided system on sedimentary rock classification and nomination based on network technology.