The invention provides an urban
public toilet site selection decision-making method and a device, and a computer readable storage medium, and the method comprises the steps: segmenting an urban crowdoutdoor activity position thermodynamic diagram into a plurality of regions comprising dot matrixes; calculating the
mass center of each point in the
dot matrix; selecting a plurality of public toiletconstruction alternative addresses near the
centroid of a point suitable for constructing the
public toilet area in the area according to the positive factor and the negative factor after the area which is not suitable for constructing the
public toilet in the area is excluded; screening an address most suitable for constructing the public
toilet from the plurality of public
toilet construction alternative addresses, and marking the address as
a site selection point Ai '; and calculating the number of squatting positions needing to be built when the public
toilet is built at the
site selection point Ai' according to the
population number in the preset range of the
site selection point Ai 'and the number of available squatting positions of the existing public toilet. According to the method provided by the invention, objective support is provided for personal reasonable decisions of planners, so that the decision of urban public toilet site selection is more scientific, objective and efficient, and a satisfactory result is brought to citizens.