The present invention discloses a method for attaining potato plates which are 
disease resistant by utilizing 
agrobacterium-mediated hrap 
gene. After the combined 
inoculation of the method and the 
bacteria allergic 
protein harpinPss, the 
allergic reaction caused by harpinPss can be promoted in the 
intercellular space of all inoculated plates, and the polymeride of harpinPss is dissociated, so the 
disease resisting effect is better, and the 
disease resistance of the potato plates can be promoted. The hrap 
gene is introduced in the potato plates through the 
agrobacterium-mediated, thus resulting that the potato plates have the ability to 
resist the late 
blight and the 
bacterial wilt. The present invention has the technical proposal that the pre-cultured explants are inoculated in the 
agrobacterium germ liquid to be soaked, explants after being soaked select the tube 
seedling which can root after two times of root selections by co-culturing, 
callus of induce, 
bud inducting and rootage cultivating and selecting, and the potted transformed plants are transferred after the 
mass propagation, the transformed plants select positive plants by the methods of the PCR detection and the Southern hybridization detection, and then the potato plates which are 
disease resistant can be obtained by the in-vivo 
inoculation resistance identification. The present invention improves the 
callus of inducing and the 
bud inducing of the explants, and enhances the agrobacterium-mediated ability. That the roots of the explants are selected by two times can eliminate the false positive plates in the transformation process , avoid the continuing cultivation to the false positive plates, save the labour force and decrease the manufacturing cost.