The invention discloses clinacanthus nutans herbal granulated tea and a preparation method. The clinacanthus nutans herbal granulated tea is prepared from, by weight, 20-85 parts of clinacanthus nutans, 10-30 parts of herb and 15-45 parts of fruit and vegetable peel, wherein the herb comprises rosemary, balm, Basil leaves, thyme and stevia rebaudiana. The fruit and vegetable peel comprises watermelon peel, exocarpium benincasae, bitter gourd peel, momordica grosvenori fruit peel and orange peel. The same cool attribute is selected, scientific blending is carried out, a synergic effect is achieved, defects are removed, advantages are reserved, cleaning and supplementing are achieved together, and the function of improving immunity is achieved. No preservative or liquid glucose is added, thesafety of the product is improved, nutritional ingredients are easy to absorb, and the sensory flavor is good. According to the preparation method, a specified submicron powder process, mixing process, blending process, extrusion forming process and the like are adopted, granular particles are bonded through self adhesive force, and an excellent process is achieved.