This report had researched the Histognesis of kidney embryo of sheep stem length from 15mm-510mm length. Under convention slice technique of tissue selection and electron microscope. This result showed that the 15mm body already generated fundament of it’s embryo definiye kidney. But without IV stage acinus renails emerged until 37mm length. Ray medullary occurred at 85mm length embryo of kidney. Proximal convoluted tubule. Distal convoluted tubule occred at 65mm length embryo of kidney. Cortex at Kidney 135mm length embryo, medullary distinguished obviously, and border gone occurred. At the time from 25mm-400mm length, under the subsfance caps, acinus renails have been always growing.it stopped till 510mm length. Macula densa had created in distal convoluted tubule at 85mm length. Consummate filtration barrier had emerged at least before 55mm length embryo about kidney.
