Abstract: The researches on conservation of conchocelies germplasm of Porphyra hahanensis were done. Three different kinds of conservation methods （Liquid conservation, solid conservation and encapsulation cryopreservation） were compared. The result showed： 1） The weights of conchocelies germplasm increased by - 0.67% during the 30 days under the condition of temperature 5℃ and they could develop normally up to 120 days without changing culture medium under the temperature 10℃ when the method of liquid conservation was used. 2） The conchocelies germplasm did not adapte to low temperature 5℃ condition in despite of the bacterium growing slowly and rarely and the conchocelies grew normally for 100 days when the method of solid conservation was used. 3） The 75% of survival rate of the conchocelies germplasm was kept when the method of encapsulation cryopreservation was used.