Based on the patents from Innojoy index on carbon-based nanomaterials biomedical field and the methods of quantitative analysis, qualitative analysis, visualization analysis, analyses are conducted for life cycle of patented technology, global patent distribution, applicant, key technology and technical efficiency matrix. The analysis results show that carbon nano-materials biomedical technology are focused on tissue engineering, medicine carrier, anti-tumor, and biological imaging. The technology enters the adjustment period, and is still a research focus, without any signs of aging. The number of Chinese applications in this field is the highest, but with very few core patents. The United States and Japan have applied for patents in the whole world. However, China mainly focuses on the domestic market.