Abstract: The system function and system structure of the computer processing system for geologic graphics,the structure of graphic database,and graphic generation and edition are introduced.The following problems are discussed,such as how to reflect the professional features when the computer-aided design or plotting system for geologic graphics are developed;how to express the stratigraphic and structural significances of geologic phenomena in the data;how to mix the geologic back-ground knowledges of professionals into the constructed geologic models;and how to design a practical and effective software system for processing the geologic graphic,etc.