Objective To assess the effectiveness of injecting Vit B 12 to the points to treat Bell’s face paralysis. Methods\ 108 patients were treated. Vit B 12 was injected to the following points on the paralysed side: Tong Zi, Si Bai, Ying Xiang, Jia Che, Di Cang, etc. Results\ After 3 courses of the treatment, the curative rate was 86 2%, the total efficacy rate 98 2%. Conclusion\ The porposed method of treatment is good at treating the Bell’s facial paralysis.