Abstract: A traditional Chinese medicine compound antitumor nano preparation, comprising the following components by weight percentage: 28%-32% of solid lipid nanoparticles containing volatile oil of frankincense and myrrh, 61%-65% of nano realgar carrying microcapsule, 0.8%-1.3% of bezoar micro-powder and 4%-6% of musk micro-powder. Use of the above traditional Chinese medicine compound antitumor nano preparation for preparing antitumor drugs. The traditional Chinese medicine compound antitumor nano preparation of the present invention can remarkably improve bioavailability of every component in the traditional Chinese medicine compound; at the same time, it can achieve better curative effect with reduced dosage.