Dehydrogenation catalyst using metal support

The invention relates to a dehydrogenation catalyst using a metal support. A plurality of units are arranged in the dehydrogenation catalyst; each unit is arranged to be parallel to the moving direction of hydrogen, so the formed dehydrogenation catalyst has a honeycomb contact surface and a cylindrical or hexahedral shape; the catalyst is composed of the metal support in which the thickness of awall between two adjacent units is 0.01 to 0.20 mm; and the cross section of each unit of the catalyst is one selected from the group consisting of a corrugated shape, a triangular shape, a quadrangular shape and a hexagonal shape. According to the invention, the dehydrogenation catalyst is prepared from the metal support body with excellent strength and capacity of bearing impact; the dehydrogenation catalyst is free of moisture absorption which hinders in catalytic reactions when used in nuclear power stations, diesel oil-powered submarines or other places with hydrogen explosion possibility; since the thickness of