Abstract: On the basis of summarizing the characteristics of typhoon-induced landslides, a simplified mechanical model was established for evaluating the stability of slopes covered by arbors by coupling of fissure preferential flow and wind load. Three kinds of arbors with different crowns, i.e., conic crown, circular crown, and cylindrical crown, respectively, were selected to calculate the time series of wind loads at different heights of the arbor by overlaying fluctuating wind and average wind. The mechanical responses of arbors under typhoon action were obtained by means of ABAQUS finite element simulation, and the maximum total force at the bottom of the arbor was considered as the sliding force. Taking a simplified binary structure slope as an example, in the condition of a fixed rainfall intensity of 250 mm·d^-1, the stabilities of slopes covered by three kinds of arbors were calculated under the coupling of fissure preferential flow(i.e., fissured slope) and wind load, and were then compared with the results of non-fissured slope that considered only the wind load. The results show that:(1)due to the fissure preferential flow, the infiltration rate of rainwater in fissured slope is significantly faster than that in non-fissured slope, and the time required to reach saturation is significantly shortened compared to non-fissured slope; (2)the factors of safety(F_s) of both fissured slope and non-fissured slope decrease with increasing wind speed, and F_s of fissured slope is significantly lower than that of non-fissured slope at each wind speed; meanwhile, the wind speed during the instability of fissured slope is significantly lower than that of non-fissured slope; (3)for either the fissured slope or non-fissured slope, Fs decreases the most when arbors with cylindrical crowns are developed, followed by the slope covered by arbors with circular crowns and conic crowns. This research can provide references for the mechanism interpretation and early warning of shallow landslides on slopes covered with trees, especially arbors under extreme convective weather such as typhoons.