The utility model relates to the technical field of droppers, in particular to a disposable dropper with a filtering function, which comprises a hose body with a solution cavity, the bottom of the hose body is provided with a first opening communicated with the solution cavity, the first opening is detachably provided with a filtering dropping head, and the filtering dropping head is provided with a dropping channel penetrating through the upper surface and the lower surface of the filtering dropping head. And a filtering
sponge and a filtering membrane are sequentially arranged on the liquid dropping channel along the liquid outlet direction. Compared with the prior art, the filter
sponge and the filter membrane are sequentially arranged in the filter channel along the liquid outlet direction; a
diluent in the solution cavity can firstly pass through the filtering
sponge to filter secretions in a sample, so that the
clarity of the
diluent inoculated to a
drug sensitive culture medium is ensured; in addition, infectious microbes can be filtered through the filter membrane, it is guaranteed that
diluent inoculated to the
drug sensitive culture medium does not contain impurities and infectious microbes, the test reliability and accuracy of the
drug sensitive culture medium are improved, and the situation that doctors are misguided to take drugs and patients are misguided to treat the drugs is eradicated.