The invention discloses an ointment for preventing and treating plant shothole scabs. The ointment comprises the following components by mass percent: 20% to 30% of bentonite, 20% to 30% of potassium humate, 10% to 15% of fulvic acid, 5% to 10% of nicotine, 0.05% to 0.08% of a-naphthylacetic acid, 2% to 3% of polyvinyl alcohol and 10% to 15% of water. The ointment has the advantages of simplicity in proportioning, convenience in use, good effect in treating shothole, and low recurrence rate. When the ointment is in use, plant shothole scabs can be cut when discovered during the growing period, a cutting mouth can be controlled within the range that the cutting mouth is 2 to 3 centimeters larger than a color-changing tissue and only a small amount of healthy tissue is scraped off, after scraping, a layer of ointment, which is 3 to 4 centimeters in thickness, is applied on shothole scabs, exceeds the edge of a disease hole for 3 to 4 centimeters, and is required to be applied completely; and the disease hole is sealed by the ointment together with plastic paper. The ointment has the advantage that the effect of preventing and treating plant shothole scabs of apple trees reaches 93%, and the effect of preventing and treating plant shothole scabs of cherry trees reaches 93%.