本文对家蝇卵的表面结构进行了扫描电镜观察。蝇卵表面有一层膜状物，其上满布有小孔。膜状物由一层大小不等的组织团与膜下层结构相连接，并在组织团间形成空隙。膜下层组织具分布均匀、大小不一的孔陷。卵的凹面有一条宽约８０μｍ的孵化缝，其结构与其它处的相似，但表面的膜状物极薄。 In this paper, the surface structure of housefly eggs were observed by scanning electron microscopy. Flies have a layer of membrane surface film, covered with holes. Membrane from a layer of tissue with different sizes and membrane structures connected to the underlying structure, and the formation of interstitial tissue groups. Membrane tissue with uniform distribution, the size of the hole trapped. The concave surface of the egg has an incubation hatch with a width of about 80 μm. Its structure is similar to that of the rest except that the membrane on the surface is extremely thin.