The invention relates to a laminating mechanism for heat-conducting foam strips. The laminating mechanism comprises a foam strip feed roller, a first turning roller, a first top-bottom adhesion gluing roller, first laminating double rollers, a copper foil cladding mechanism, a second upper heat-conducting gluing roller, first pressure double rollers, second pressure double rollers, second laminating double rollers, a second turning roller and a collecting roller which are sequentially distributed along an assembly line direction. A copper foil feed roller is arranged below the first laminating double rollers; a graphite spreading trough is arranged between the second upper heat-conducting gluing roller and the first pressure double rollers; a protective film feed roller is arranged above the second laminating double rollers; a glue spraying mechanism is arranged between the second pressure double rollers and the second laminating double rollers; and the copper foil cladding mechanism is divided into a first bending area, a transition area and a second bending area. The laminating mechanism for heat-conducting foam strips disclosed by the invention is reasonable in design, simple in operation, high in pertinence and high in processing efficiency and can meet the large-scale volume production requirement.