A composite serial lamp set includes one or more non-electrical connector assembled with a serial lamp set, and the non-electrical connector is formed by tying a plurality of strands into a bundled wire and wrapping the bundles wire with a jacket layer to constitute a string-like sheath wire. There is a twisting of the non-electrical connector with the serial lamp set into a fixed position. The composite serial lamp set in can be of various patterns and shapes such as linear, circular, triangular, rhombus, or square. The composite serial lamp set is solid and durable.