Abstract：Insomnia is a common disease in clinical practice，which seriously affects patients' daily life and health. According to LAI's Tongyuan Needling Technique， the pathogenesis of insomnia is that yang does not enter yin resulting in yin-yang imbalance. Its treatment is based on original spirit，and its general principle is based on conception and governor vessels. Besides，LAI pays attention to the coordination of brain， heart and kidney， and is good at regulating and guiding yang qi to balance yin and yang， and he emphasizes the cultivation of the original qi and consolidation of the basis to make each qi return to the original and balance each other. In clinical practice， Baihui point (DU 20)， Yintang point (EX- HN3) and Dazhui point (DU 14) are needled to unblock governor vessel， calm the original spirit and instruct yang downwards；Danzhong point (RN 17) is needled to regulate pectoral qi， rest the heart spirit and instruct yang to yin；Zhongwan point (RN 12)，Tianshu point (ST 25) and Fengchi (GB 20) are needled to harmonize the nutrient qi and defensive qi， fortify the spleen and stomach， and free and transport qi movement； Qihai point (BL 24)，Guanyuan point (RN 4) and Mingmen point (DU 4) are needled to cultivate the original qi，consolidate essential qi，and nourish yin and grasp qi. Point combinations vary from syndromes to drain excess fire， clear phlegm and stasis， and dispel pathogen and clam the healthy qi. The authors systematically summarize the thoughts and application of Tongyuan Needling Technique to treat insomnia， which can provide a new idea for clinical treatment of insomnia.