Abstract: By observations of phase contrast light and electron microscopies,according to granular existence and granular size?refraction?staining reaction?forming way,haemocytes were classified into four type cells:agranular cell in whose cytoplasm there was no granular;large granular cell in whose cytoplasm there were refractile and red stained large granulars;small granular cell in whose cytoplasm there were non refractile and blue stained small granulars;large and small granular intermediate cell in whose cytoplasm there were large and small types granulars.The forming way of small granulars was that the small vacuoles which were released from the Golgi organelle directly became the small granulars.The forming way of large granulars was that the small vacuoles which were released from the Golgi organelle first gathered together,then formed reticulate dense bodies,and finally matured into even dense large granulars.The experimental results showed that three types granular cells independently developed,could respectively be differentiated from agranular cells.