Abstract: Four extracting technique, which were the ordinary screw press, solvent extraction, bakery hydraulic press and fast hydraulic press, were applied to research the effects of quality and active constituent of camellia seed oil. The results showed that the acid value and peroxide value of oil that extracted by fast hydraulic were lowest, but that in oil which extracted by ordinary screw press were highest. The oleic acid and α-tocopherol of oil which extracted by fast hydraulic were highest with the value of 82.85% and 29.8mg/100 g respectively. The squalene and β-sitosterol in the oil extracted by fast hydraulic were better preserved. Viewed from the quality and active constituent points, the fast hydraulic press was a better technique.