We determined the protein, fat, total sugar, ash, aminoacids，minerals and trace elements of Palembus dermestoides (Fairmaire) feeding   on grain diet and the diet with traditional Chinese medicine. The results showed that there were abundant nutrients in P. dermestoides feeding on both diet. There was no significant effect on the percent of amino acids, crude protein, crude fat and ash in the body of insect. EAA/TAA of the two oups was 46.94% and 46.19%, respectively, and EAA/NEAA was 88.47% and 85.84%, respectively. The first limiting amino acid of protein was the amino acid containing sulfur (Met and Cys). The index of the essential amino acid was 99 and 92, respectively. P. dermestoides was a kind of better health medicine resource of insect protein. The content of mineral and trace elements in P. dermestoides fed by traditional Chinese medicine was remarkably higher than that by grain. So P. dermestoides can be remedial medicine when fed by traditional Chinese medicine.