The invention discloses a leaf-cutting propagation method for succulent round-leaf Aeoniumarboreum. The leaf-cutting propagation method includes the following steps: 1, soil is prepared, wherein culturing soil comprises Akadama soil, bamboo charcoal, sphagna, vermiculite, peat soil, fermented rice hull coal, pelelith, active carbon and slow-release fertilizers; 2, round-leaf Aeoniumarboreum stock plants are irradiated by an ultraviolet lamp three times, wherein the duration of each time of irradiation ranges from 3 hours to 4 hours, and the three times of irradiation are carried out at one-day intervals; 3, leaves of the round-leaf Aeoniumarboreum stock plants in the step 2 are slightly broken off and placed at shady, cool and ventilating positions to be aired two to three days to enable fractures to be dried through airing; 4, the leaves dried through airing in the step 3 are placed on the culturing soil in the step 1 with the back faces of the leaves downward, the sides, provided with the fractures, of the leaves are slightly pressed with fingers to enable the leaves to be slant, and the fractures are tightly attached to the surface of the vermiculite; 5, after roots are grown from growing points at the fractures of the leaves, a layer of coarse gravel with the particle diameters ranging from 1 mm to 3 mm is scattered on the culturing soil. By means of the method, the leaf hydration probability is lower than 3%, and the survival rate of new plants can reach 97%.