In this study, in order to investigate impact resistant behavior of timber beam strengthened with Aramid fiber bonding method using epoxy and/or thermoplastic adhesive, weight-falling impact loading tests were conducted taking the kind of adhesive and weight falling height as variables. Here, newly proposed bonding method using thermoplastic resin could be able to reduce the work time for bonding the sheet. Also, appropriate bonding method by using thermoplastic resin was proposed based on bonding capacity tests. From this study, it could be revealed that static and impact resistant capacities can be drastically improved due to Aramid fiber sheet bonding method, irrespective of the kind of adhesive resin.