Preparation method of drink for treating insomnia of old people

The invention discloses a preparation method of a drink for treating insomnia of old people. The preparation method comprises the steps that bamboo shavings, fructus gardeniae, chuanxiong rhizomes, platycladi seeds, dens draconis, poria cocos and radix ophiopogonis are ground for use by weight separately; ginseng, licorice root slices and spina date seeds are together put into a pot, water is injected into the pot for decocting, stirring is conducted, filtering is conducted while the pot is hot, and filtrate is obtained for use, wherein the decocting time ranges from 20 min to 30 min, and the decocting temperature ranges from 70 DEG C to 80 DEG C; the raw materials treated in the first step and the filtrate obtained in the second step are mixed, rock sugar, longan pulp, lotus seeds and hawthorn fruit are added, all the materials are decocted for 10 min to 15 min, the pressure is increased by 0.3 MPa, and the heating temperature is increased; heat preservation is conducted for 10 min to 20 min at the heat preservation temperature of 85 DEG C to 90 DEG C, filtering is conducted, residues are discarded, and liquid is left and serves as the drink. The traditional Chinese medicine is prepared through the steps of grinding, decocting, filtering and the like, beneficial ingredients of all the drugs are greatly guaranteed, a good effect of treating the insomnia is achieved, and the whole method is suitable for industrial production and processing and can be further applied and popularized.