从内因和外因两大方面阐明了影响嫁接成活诸因素间的关系 .指出内因是嫁接成功的前提和动力 .在外因中 ,湿度是主导因素 ,各因素间是相互影响的对立统一的整体 .并根据各因素间的作用阐明嫁接实践中技术操作的要点 ,为嫁接成功提供了重要理论依据 From the internal and external causes, this paper clarifies the relationship between the factors that affect grafting survival, and points out that internal factors are the prerequisite and motivation for the success of grafting.In the external factors, humidity is the dominant factor, and the factors are the opposites of the opposites. According to the role of various factors to clarify the main points of technical operation in grafting practice, which provides an important theoretical basis for the success of grafting