The invention discloses a method for extracting hinokiflavone from Cacumen Biotae. The method comprises the following steps: 1) pulverizing Cacumen Biotae, adding 5-10 times of saturated lime water for immersion and extraction for 2-3 times, ultrafiltering the extracting solution through an ultrafiltration membrane, and concentrating the filtrate with a nanofiltration membrane to obtain a concentrated solution; 2) regulating the pH value of the concentrated solution to 3-5, adding into a macroporous resin column for adsorption, carrying out gradient elution with an ethanol solution, concentrating the eluate, regulating the pH value to 3-5, and crystallizing; and 3) dissolving the filtered crystal in a 50-80% methanol solution, concentrating until the methanol concentration is 10-30%, adding into a macroporous resin for adsorption, carrying out gradient elution with an ethanol solution, concentrating the eluate for crystallization, recrystallizing the crystal with a 70% ethanol solution, and drying. The method for producing hinokiflavone has the advantages of simple technological operation, low energy consumption and small pollution, and can easily implement industrial production.