Disclosed is a case module for a portable terminal using a thermal adhesive tape. The portable terminal using a thermal adhesive tape includes: a case and a LCD cover of a portable terminal disposed so as to face with each other; a heated sheet made of a conductor and disposed between the case and the LCD cover; a first melting sheet adhered to a face of the heated sheet facing to the case; and a second melting sheet adhered to the other face of the heated sheet facing to the LCD cover, wherein the first sheet is melted to couple the heated sheet and the case to each other and the second sheet is melted to couple the heated sheet and the LCD cover to each other when the heated sheet is heated by a high frequency induction.