Objective: To optimize the water extraction process parameters of sea-buckthorn strengthening instant tea to provide basis for industrialized production. Methods: The contents of ginsenoside Rg1,Re,Rb1 and polysaccharide were taken as the indices of process evaluation. The extraction times were investigated by single factor experiment. The water extraction process parameters of seabuckthorn strengthening instant tea including the amount of water,water extracting time and soaking time were optimized by a response surface method. Results: The optimum process parameters were as follows: the soaki...