Tonic health-care tea for enhancing human immunity and preparation method thereof

The invention discloses a tonic health-care tea for enhancing human immunity. The health-care tea consists of the following components in parts by weight: 1-4 parts of Chinese angelica, 1-10 parts ofMinshan trifolium pretense extract, 1-10 parts of Chinese wolfberry fruits, 1-10 parts of red dates, 1-10 parts of roses and 1-5 parts of xylitol. The formula of the invention utilizes raw materials coming from origin places: Chinese angelica stems are capable of enriching blood, nourishing blood and promoting blood circulation; Minshan trifolium pretense is used as a human antioxidant; the Linzered dates are capable of invigorating the spleen and invigorating yang; the roses are capable of regulating qi-flowing, resolving stagnation, eliminating dampness, regulating middle warmer, promotingblood circulation and dispelling blood stasis; the xylitol are capable of promoting the synthesis of liver glycogen and avoiding blood sugar rising; and supplemented Chinese angelica leaves are capable of stabilizing and loweri