To explore the main nutritional ingredients in larva and pupa of Kallima inachus, and to provide a theoretical basis for their edibility, the content of water, fat, protein, mineral elements and amino acids were determined using the national standard methods. Amino acid score and essential amino acid index were also analyzed, and the nutritional content of protein, fat and mineral elements in larva and pupa of Kallima inachus were compared with those in common foods. The results showed that there contained 8.6% and 3.8% of fat, 68.4% and 57.8% of protein, 5.8% and 11.4% of ash, 17.2% and 27.0% of carbohydrate in larva and pupa of K. inachus respectively. Total amino acid content in larva and pupa of Kallima inachus were 430.6 mg/g and 306.0 mg/g respectively, both of them included 39.4% of the essential amino acids. The element ratio of essential amino acids and nonessential amino acids was 0.65. Their essential amino acid index was 0.952 and 0.733 respectively. Therefore, larva of K. inachus had higher nutritional value and edible value than that in pupa.