The utility model provides a heat preservation decorating system integrative with a structural construction. The heat preservation decorating system comprises a heat preservation decorating plate serving as an exterior template, a lateral caulking stripe, a longitudinal caulking stripe and fixed parts. A groove is arranged on the peripheries of the heat preservation decoration plate. The caulking stripes are arranged between the heat preservation decoration plates and built-in the groove. The lateral caulking stripe is provided with a horizontal rib which is used for supporting the heat decorating decoration plates when the heat preservation decorating system is installed and forming gaps between the preservation decorating plates. The gaps between the lateral and longitudinal caulking stripe can be used for installing through-wall bolting. A pre-buried anchor bolt is arranged in the preservation decorating plates. The end bolting of the anchor bolt is provided with threads which are used for connecting the fixed parts. The fixed parts, the heat preservation decoration plates and the light steel frameworks are connected through the anchor bolt, so that the distance between the light steel frameworks and the inner sides of the heat preservation decorating plates remains unchanged, and the thickness between the two protective layers of the concrete after the concrete being poured is accurate. The heat preservation decorating system has the advantages of heat preservation, decoration and fire prevention.