Abstract: The present paper deals with the early development of Tor brevifilis brevifilis. The development characters of embryos and larvae in every stage have been carefully observed for three times. The experiment obtained the sum of heat and the product of effective temperature by time in all stages of embryonic development. The growth digits in 105 days during larval development were measured. The fertilized eggs are sticky , their diameters are 1. 7～1.9mm and 2.5～2. 7mm after being expanded in water. While the water temperature is 20. 5～23. 0 ℃,thewholeprocessofembryonicdevelopmentlastedfor 71 hoursand 7minutes. Themeanlength of newly hatched larva is 6. 6mm. After 65 to 72 days , the development of larvae has nearly completed. The desired lowest temperature during embryonic development and several obvious characters in its total early development have been discussed.