采用常规石蜡包埋连续切片方法，对早期中国鲎胚的结构进行了光镜观察。提出其基本结构的测量数据。观察发现第１７天鲎胚由原始胶质膜、原始胚壁及丰富的卵黄粒组成。在第２８天鲎胚中观察到大量典型的幼稚血蓝细胞及变形细胞。 Using conventional paraffin-embedded serial sections, the structure of the early embryo of China was observed under light microscope. Proposed the basic structure of the measurement data. The observation showed that on the 17th day, the embryonic germ consisted of the primitive colloid membrane, the original embryo wall and the abundant yolk granules. A large number of typical naïve blue cells and deformable cells were observed on day 28 embryos.