The invention discloses a method for testing the decocting rate of traditional Chinese medicine decoction, which relates to the technical field of decoction of the traditional Chinese medicine decoction, in particular to the test on the decocting rate of the traditional Chinese medicine decoction. Through carrying out combined tests of the water consumption, the decoction temperature, the heat power of strong heating fire, the heat power of slow fire, the decoction time of the slow fire and the like during the decoction process of the traditional Chinese medicine decoction, the contents of standard extract and decoction extract are measured, the decocting rate of the traditional Chinese medicine decoction is calculated, so the influence on the decocting rate of the traditional Chinese medicine decoction exerted by the water consumption, the decoction temperature, the heat power of the strong heating fire, the heat power of the slow fire, the decoction time of the slow fire, medicinal material forms, structures of decoction utensils and technical characteristics can be evaluated, and the quality level of the decoction also can be calculated. The invention can be applied to evaluate the decoction technique of the traditional Chinese medicine decoction, the decoction utensil and the decoction quality, and can work out different decocting rate and decoction technique requirements according to different traditional Chinese medicine decoction, so the therapeutic effect of the traditional Chinese medicine decoction can be ensured or improved through decocting the traditional Chinese medicine according to the decocting rate and the decoction technique requirements.