The stability of roadway driving along next goaf for fully-mechanized caving face is synthetically influenced by many factors such as intensity of surrounding rock, intensity of coal, mining depth, joint and crack of surrounding rock, mining operation, top coal thickness, width of pillar and roadway section. On the basis of theoretical analysis, practical experience and observation data, the subordination functions of the factors influencing the stability of roadway driving along next goaf for fully-mechanized caving face are structured and the grey-fuzzy classification model is established. The application of examples shows that the model is accurate and reliable, and plays an important part in the support design, construction and management of roadway driving along next goaf for fully-mechanized caving face.