A method for predicting a future number of customers coming into a store based on the pattern information of floating population according to the present invention, comprises a step of (a) receiving the request query of a future number of customers including a location and an industry type from a user terminal; a step of (b) searching for the pattern information of floating population corresponding to the location and the industry type; a step of (c) determining, based on the pattern information of floating population, a future number of customers when a store corresponding to the industry type in the location is added, and providing it to the user terminal. The pattern information of floating population includes request information, location, moving direction and speed for the goods or service of each user included in the floating population.
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