Abstract: Dendrobium nobile was used to produce dendrobium nobilejuice.a health drink,the extraction rate ofafkaloid and mucopolysaccharide in dendrobium nobile can reach 90%.The conclusion oftoxicity test ofdendrobium nobile juice conducted is that:the half lethal dose (LD50) in acute toxicity test on mice and wister rats,male or female.is more than 10g/kg body weight.According to acute toxicity grading standard,the sample is classified as non-toxic;Amestest.mouse myeloid cell micronucleus test.mouse teratospermia test all show negative.

Key words: Dendrobium nobile Alkaloid Mucopolysaccharide Toxicity test Health food