NOVELTY - Extracting proanthocyanidin from pinecone hull comprises crushing pinecone hull after drying and reserving, adding petroleum ether to dip the pinecone hull powder, performing ultrasonic treatment, filtering, removing petroleum ether by drying the filtered residue to obtain degreased pinecone hull powder, dipping in ethanol, mixing, extracting, filtering, adding ethanol to filtered residue, extracting, filtering, combining filtrates, concentrating and diluting, placing a macroporous resin column on extract solution, washing, analyzing, collecting effluents, concentrating and drying.    USE - The method is useful for extracting proanthocyanidin from pinecone hull.    ADVANTAGE - The method is environment-friendly and high-yielding, and it has wide resource of raw materials.    DETAILED DESCRIPTION - Extracting proanthocyanidin from pinecone hull comprises (i) crushing the pinecone hull to 40-60 meshes after drying at 60-80 degrees C and reserving, (ii) adding petroleum ether (which is 8-12 times the pinecone hull powder in quantity) to dip the pinecone hull powder for more than 24 hours, performing ultrasonic treatment at room temperature for more than 25 minutes, filtering, recovering petroleum ether from filtrate, removing residual petroleum ether by drying the filtered residue at room temperature or a lower temperature to obtain degreased pinecone hull powder, and then reserving, (iii) dipping the degreased pinecone hull in 40% ethanol at a solid-to-liquid ratio of 1:20 for more than 24 hours after mixing well, extracting by ultrasonic oscillation for 1 hour, filtering, adding 40% ethanol (20 times of filtered residue by quantity) to the filtered residue, extracting by ultrasonic oscillation for 1 hour, filtering, combining filtrates, concentrating at a reduced pressure until there is no alcohol smell, diluting with distilled water and reserving, (iv) using macroporous resin AB-8 and passing extract solution through macroporous resin column for more than 24 hours, washing with water at a flow velocity of 2 bed volume (BV)/hour until the effluent is clarified, stopping washing with water, analyzing with 20-60% of 4-6 BV ethanol, reducing the flow velocity of elution to one half, collecting effluents, concentrating effluent at 60-80 degrees C and a reduced pressure to recover ethanol, and drying in vacuum at 60-80 degrees C to obtain finished product.