The utility model provides a high -efficient micropore membrane filter, include: go up casing, lower casing and filtration membrane, go up the casing and form between the casing down and filter the cavity, last casing upper end be provided with the top connection, lower casing lower extreme be provided with the lower clutch, the internal portion of inferior valve is provided with a supporting bench, is provided with drainage grooves a plurality of and the lower clutch intercommunication on the supporting bench, filtration membrane set up last casing with down between the casing, and filtrationmembrane's center is through propping up a supporting bench support formation umbrella structure. This filter is not only with low costs, filters safety, and convenient to use is difficult to block up moreover, drips the drug effect rate and strengthens greatly.