The area of granite occupies 67.3% of total land area in Deqing county of Guangdong province. Due to artificial and natural factors, this county has the most serious disintegration in Guangdong province. Based on the contributing factors, types and features of the disintegration, the guiding principles of disintegration control are to apply the coordination of engineering and biological measures, which is to use engineering techniques to arrest the immediate loss of soil, and to develop re-vegetation programs for long-term stabilization of the slopes. Great benefits of society, ecology and economy have been attained after it has been controlled since 1949, but the soil erosion (especially disintegration) is still very serious. Therefore, it must be controlled permanently. At the same time, some feasible proposals are presented for its controlling.