1. A method for estimating communication quality of a wireless network applied to an estimation device comprising a storage device and a processor, wherein the wireless network includes a plurality of nodes, the method comprising: providing coordinate information of the nodes and at least two types of map data; associating the coordinate information of the nodes with the at least two types of map data to map the nodes to the corresponding positions of the at least two types of map data; extracting spatial feature data between a first node and a second node of the nodes from the associated map data, wherein the spatial feature data includes spatial distribution data and spatial attribute data, the spatial distribution data representing distribution data for buildings and/or lands within spaces between the first node and the second node, the spatial attribute data representing land usage categories and/or classifications corresponding to the distribution data for buildings and/or lands; selecting one of a plurality of path loss models according to the spatial feature data between the first and second nodes and estimating a pass loss between the first and second nodes using the selected path loss model; and estimating the communication quality between the first and second nodes according to the estimated pass loss between the first and second nodes.