I apply 3D printing to shape Papi Chair, both the internal structure and the stress point of the chair are taken into account through parameterization to achieve the lightest durable intensity.The surface of the chair is strengthened and smoothed by polymer composite materials and is used additive manufacturing and surface thermosetting molding methods.It was designed to create sculptures with flowing curves at the beginning and coalesces the inner curved surface of the chair to fit the human body. The arm of the chair bends inwards for three sides, which is to express father's arm protection.