A smart dialing recommendation method, a non-transitory computer-readable medium, and a mobile device are disclosed. The smart dialing recommendation method includes: establishing a database according to a correspondence between a plurality of different time intervals in a past time range and a plurality of communication numbers by using a machine learning algorithm; obtaining a time stamp; and determining whether the time stamp has expired. When it is determined that the time stamp has not expired, according to the correspondence in the database and a current time point, a recommended number corresponding to the current time point is retrieved from the plurality of communication numbers. When it is determined that the time stamp has expired, the machine learning algorithm is performed again to update the plurality of communication numbers.