The invention provides a method for preparing a traditional Chinese medicine for curing deficiency in heart and spleen depressive psychosis, and the method belongs to the medical appliance technical field. The depressive psychosis adopts the antidepressant medications for patients with pixilation disease and the imipramine therapy and causes the symptoms such as dry mouth, constipation, sweatiness, fremitus, blurred vision and dysuria. The technical proposal of the invention is as follows: the raw medicines of radix codonopsitis, broiled milk veteh, heterophylly falsestarwort root, atractylis ovata, bidens tripartita, malt extract, Chinese date, tuckahoe, angelica, radix paeoniae alba, lungyen pulp, spina date seed, semen biotae shelled, semen biotae shelled, polygala, cortex albiziae, caulis polygoni multiflori, wheat, ulmaceae, cinnamon and liquorice are placed into 1200 milliliters of water to be steeped for 30 minutes and are decocted by slow fire, the decocted liquid medicine is filtered by gauze to eliminate dregs, and 560 milliliters of liquid medicine which is the traditional Chinese medicine for curing deficiency in heart and spleen depressive psychosis is made. The traditional Chinese medicine has the advantages of simple preparation, fewer side effect and low toxicity. After the medicine is taken orally, the medicine can be absorbed in a digestive canal; therefore, the curative effect is stable and is not easy to rebound.