Construction method for special-shape eave of concrete building

The invention discloses a construction method for a special-shape eave of a concrete building. The construction method comprises the following steps: erecting a shear wall template; binding a special-shape eave steel bar on a special-shape eave part outside a shear wall; filling a groove between the special-shape eave steel bar and the shear wall by a light-weight plate; erecting a special-shape eave template outside the special-shape eave steel bar; pouring concrete into a special-shape eave template cabin; and after initial setting of concrete, removing the templates and the light-weight plate. A template does not need to be independently erected at the groove part, the bottom of the groove is directly filled with the light-weight plate, and that the template is replaced with the light-weight plate has profound social benefits of integrating environment protection, resources, economy, technologies and energy conservation; the concrete is molded in one step, so that the safety and the durability of the struc