An online language learning evaluation method, an online language learning system and a learning method thereof are provided to objectively evaluate a learning level of a learner based on quantitative comparison data. After a user learns contents, response data about a learning result is received from the user. The received response data is processed into plural lower unit data according to a predetermined analysis condition(S1). The response data of the user is objectively evaluated by quantitatively comparing the processed lower unit data with comparison data selected from a comparison database(S2,S3).
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