Are disclosed a thermoplastic material for vehicle interior or exterior having not only excellent strength in winter but also excellent sound-absorption and heat-resistance, a method for preparing the same and an article for vehicle interior or exterior using the same. A method for producing a thermoplastic material for interior or exterior of vehicle, comprising the steps of: forming a fiber sheet or web by randomly arranging fibers having a length of 50 mm or more, the fibers being selected from the group consisting of glass fibers, carbon fibers, basalt fibers, aramid fibers and mixtures thereof; applying polyethylene powders to one side or both sides of the fiber sheet or web; forming a fiber reinforced mat by heating and pressing the fiber sheet or web to which the polyethylene powders are applied; and laminating the fiber reinforced mat on one side or both sides of a polypropylene base.