The invention discloses gastrodia elata tea and a preparation method thereof. The preparation method comprises the following steps: cleaning and cutting 60 to 70 parts of fresh gastrodia elata into strips, placing the fresh gastrodia elata strips into water for heating and boiling for 10 min, and adding water into 0.2 to 0.4 part of carrageenan to boil until the carrageenan is completely and evenly dissolved; mixing five raw materials including 40 to 60 parts of white sugar, 30 to 40 parts of honey, 0.1 to 0.3 part of citric acid, the boiled gastrodia elata strips and the completely and evenly dissolved carrageenan, and stirring evenly and continuously heating until complete dissolving; continuously heating and boiling for 30 min; carrying out hot filling quickly, enabling the temperature in the center of a glass packaging bottom to be not lower than 90 DEG C, and quickly sealing after venting; sterilizing and cooling. The method provided by the invention has the benefits as followings: modern production technology is adopted, the process is simple, convenient and feasible, the equipment is simple, and the method is suitable for industrial production; the fresh gastrodia elata is taken as a main raw material, the honey, the white sugar, the carrageenan and the citric acid are taken as auxiliary materials, no artificial color is contained, and the produced gastrodia elata tea is unique and full in taste, fine and smooth in mouthfeel, rich in nutrition and has a certain nutrition and health care function.