The purpose of this study investigates the impact of spirulina and ashwagandha on the biochemical and economic characteristic of B.mori. Nutrition of silkworm is sole factor which almost augment quantity and quality of slide fortification of mulberry leaves by nutrient supplementation can be increased the quality and productivity of silk. Spirulina is blue green algae. It contains 18 amino acids and vitamins. The nutrients are very easy to digests protein and carbohydrates. W.somnifera commonly known as ashwagandha, are used in traditional medicine. The main chemical constituents are alkaloids and steroidal lactones. These include trophine and cuscohygrine. In this experiment consists of 2 treatment (spirulina and ashwagandha) with 5 concentrations (1,2,3,4 and 5 per cent). Hence in this investigation an attempt is made to study the impact of fortification of treated leaves on biochemical content (protein, carbohydrate and lipid) of silk gland, haemolymph, muscle and fat body of B.mori larvae.During insect metamorphosis, profound biochemical changes occur in the haemolymph, in particular, the concentration of proteins. The silkworm produces massive amount of silk protein during final stage of larval development. Further, same study was conducted to find out the economic traits of B.mori. The major real silk fibre is fibroin and the adhesive substance is sericin. The result indicates there is a better silk production.