In 2018, in order to resolve the settlement of high-risked old gas cylinder, our campus formed project plans with Environmental Protection Administration from Executive Yuan and Minister of Education. Successfully, getting rid of 61 old and unknown gas cylinders, our campus had eliminated the latent risk attended by old gas cylinders; this dramatically diminished the risk on campus, which was nationally first case. The outcome had provided to Minister of Education, which was targeted-oriented to set up the procedure addressing the same problem in other campus.