Recently, the blast and fire accidents on the ship and offshore are occurred frequently such as Gulf of Mexico oil spill in 2010. Therefore, the blast doors which are installed in the ship and offshore living quarter not only required fire protecting performance but also withstanding blast pressure to ensure the safety of crews. In this paper, the transient analysis is performed to be verified the structural strength of blast door with metal fiber for proving it. When the blast accident is occurred on the ship and offshore living quarter.