The invention provides a Chinese herba preparation capable of treating phlegm-fire confusing heart type generalized anxiety disorder. The Chinese herba preparation is prepared from the following raw herbs: caulis bambusae in taeniam, fruit of immature citron, rhizoma pinellinae praeparata, poria with hostwood, chlorite schist, ruddle, arisaema cum bile, sliced white aconite, radix curcumae, rhizoma acori graminei, felwort, radix bupleuri, fructus gardeniae, rhizoma anemarrhenae, golden cypress, radix glehniae, ophiopogon root, pericarpium citri reticulatae, raw rhubarb, fructus trichosanthis and licorice roots northwest origin. On the basis of theoretical research, summarization of clinical specialists on multi-year experiences in Chinese medical treatment for anxiety, as well as the curative effect observation and security verification of generalized anxiety disorder treatment based on combination of the Chinese herba preparation and Deanxit, the Chinese herba preparation has a favorable effect of promoting generalized anxiety disorder treatment based on Deanxit, reducing the use amount of Western medicine, reducing the toxic and side effects of Western medicine, is free from toxic and side effects and applicable to clinical popularization and application of the Chinese herba preparation.