PROBLEM TO BE SOLVED: To provide a drug-resistant bacteria test method for a plant pathogenic microbe, wherein the presence or absence of the bacteriostatic effect to the target plant pathogenic microbe (including an obligate parasite) can be determined rapidly and reliably, and inexpensively.SOLUTION: The invention provides a drug-resistant bacteria test method 9 for a plant pathogenic microbe comprising sticking at least one thin axis-like test piece 1 with water absorbing property obtained by the impregnation of a drug to be used into a fruits sample 11 infected with a plant pathogen 12a (Step S01); leaving to stand this state and culturing under temperature conditions of 15-25°C for 1-4 days (Step S02); subsequently, by confirming the presence or absence of the plant pathogens 12a on the test piece 1 stuck into the fruits sample 11 or the attainment level thereof, determining the bacteriostatic effect to the plant pathogen 12a of the drug to be used which is impregnated in the test piece 1 (Step S03).SEL