The embryonic morphological development of the guinea fowl at different stages was observed with the naked eye and microscope. The sequence of organ formation in the guinea fowl was similar to that of the chicken .The weights of early embryos within 10 days of incubation increased slowly, but rose fast after 10 days of incubation up to hatching, According to the state of the embryonic development and weight increase, the process of embryonic development could be divided into three it ages, early, middle and late.