The invention discloses a portable multifunctional first-aid kit for infantile convulsion and relates to the field of medical apparatus and instruments. The portable multifunctional first-aid kit comprises a box cover and a box body and is characterized in that the top surface of the box cover is provided with a handle, the box cover is hinged to one side of the box body, and the opposite side ofthe box body is provided with safety lock catch and a TAS combination lock; the lower portion of the box body is provided with a storage layer, and a top-layer storage rack and a middle-layer storagerack are arranged above the storage layer; the corresponding two sides of the top-layer storage rack and the middle-layer storage rack are hinged through movable foldable support rods; two sides of one end of the middle-layer storage rack are hinged to the box cover through movable foldable support rods, and two sides of the other end of the middle-layer storage rack are hinged to the box body through movable foldable support rods; garbage bag hooks are hinged to two sides of the top-layer storage rack. By the portable multifunctional first-aid kit, the problem that a conventional first-aid kit cannot achieve convenient and fast rescue when the infantile convulsion occurs suddenly can be solved.