According to an embodiment of the present invention, a studying service providing device comprises: problem information database configured to store one or more pieces of problem information about studying content; a service providing unit configured to provide a studying service to a terminal device based on digital learning material having one or more pieces of problem information; a weakness information management unit configured to receive answer information from the terminal device corresponding to each problem supplied to the terminal device according to the studying material and to manage weakness information of a user based on the percentage of correct answers to each problem obtained from the answer information; and a weakness reinforcing process generation unit configured to select a weakness reinforced problem from the weakness information management unit to generate a weakness reinforcing process.
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