‘Xinxin 2’ and ‘Wen 185’ for two early bearing walnuts varieties in Xinjiang were used as materials in the experiment.Their female flowers were treated with three kinds of apomixis methods:sulphuric acid paper bagging,PVA enveloping stigma and cutting stigma.The natural pollination was used as control,then the tissue structure changes of apomixis endosperm and embryo development were observed in the two walnut varieties.The results indicated:(1)Natural fruit setting percentage of ‘Xinxin 2’ walnut was higher than that of ‘Wen 185’ walnut.However,its rate of apomixes was lower than that of the ‘Wen 185’ walnut;(2)The fruit developed by apomixis was smaller than natural fruit;(3)The two varieties’ embryo sac belonged to polygonum-type.The embryo matured gradually passing ten days.(4)The apomixis embryos of the two varieties came from egg cell.The egg cell began to mitosis,formed two cell embryos,4-cell embryos,8-cell embryos and multicellular embryos,then completed embryos development through three stages of globular embryos,heart-shaped embryos,torpedo-shaped embryos,all these for ten days.This embryos development belonged to the parthenogenesis type;(5) The two varieties’ endosperms were karyotype,its dipolar nucleus formed endosperm cell at late after 8 days.