The invention discloses dandruff-removing itching-relieving liquid shampoo. The dandruff-removing itching-relieving liquid shampoo is characterized by comprising the following components in percentage by weight: 30% of sasangua cake extracting liquor and 20% of common bombax flower extracting liquor. A method for preparing the liquid shampoo is as follows: 1, weighing fatty alcohol polyoxyethylene ether sodium sulfate, cocoalkanoylamido propyl betaine and coconutt diethanol amide, adding a proper amount of distilled water, and heating for dissolving; 2, adding lauryl sodium sulfate into the obtained liquor and dissolving; 3, mixing glycerol with tea oil, adding pearl powder, pouring into the liquor obtained in the step 2 after dissolving; 4, uniformly mixing the sasangua cake extracting liquor and the common bombax flower extracting liquor, uniformly mixing, heating, and pouring into the liquor obtained in the step 3; 5, adding a mixture of salt, citric acid, edetic acid, methylparaben and ethylparaben, and essence, uniformly stirring and discharging. The dandruff-removing itching-relieving liquid shampoo disclosed by the invention is good in foaming and regulating performance, has pharmacological functions and is good in dandruff-removing itching-relieving effect.