A predicting method of a plurality of wildfire propagation areas includes a network constructing step, a normalized adjacency matrix constructing step, a node ranking value calculating step, a state ranking value calculating step, a source node determining step and an occurrence probability calculating step. The node ranking value calculating step is performed to calculate a ranking value and a plurality of states of each of the nodes. The normalized adjacency matrix constructing step is performed to construct a normalized matrix. The state ranking value calculating step is performed to calculate a state ranking value and a state probability of each of the nodes. The source node determining step is performed to determine a source node of the wildfire propagation areas and the states corresponding to the source node. The occurrence probability calculating step is performed to calculate the occurrence probability of the wildfire propagation areas. |