Abstract: The present disclosure relates to an online test assessment management system and method thereof. The system includes a learner-information database to store login information, personal information, and learning level information of a learner; an item pool database to store questions for an online test and outputting the questions on an online test examination screen during the online test; an online test unit to perform the online test through the online test examination screen and to collect data about a sequence of inputting answers by a learner with regard to questions output for the online test, the number of clicks for changing selected answers, and a reaction time taken in inputting a certain answer after a learner selects the certain answer; and a reaction pattern analysis unit to analyze a learner's online test data collected by the online test unit, and to assess, diagnose and electronically report learner's learning level, learning ability and examination behavior to a learner or teacher terminal.