The invention belongs to the field of analytical chemistry, and discloses high-efficiency filter apparatus for a mixture. The apparatus comprises a heating device, a container, an extractor and a condensation pipe; the condensation pipe, the extractor and the container are vertically connected in sequence, the condensation pipe is located at the upper part of the extractor, the container is located at the lower part of the extractor, and the heating device is used for heating the container; and the filter apparatus further comprises a filter cartridge located in the extractor, and a directionof an opening of the filter cartridge is consistent with a direction of an opening of the extractor. The invention also discloses a filter method for efficiently filtering the mixture by adopting thefilter apparatus. By adopting the filter apparatus and the filter method provided by the invention, the mixture can be efficiently filtered, and the whole filtering process is performed in a closed environment, so that a filter solvent with toxicity and a better separation effect can be selected for filtering the mixture, and the apparatus and the method can be used in the fields of scientific research, chemical analysis, environmental detection, water quality analysis and the like.