This article proposes the influence of the cocoon drying technology on the properties of the shell and pupa of the silkworm. We also analyzed the change in the initial weight of the cocoons treated at different temperatures, the microscopic view of the cocoon shells. Cocoons grown at different times of the year were taken as the object of the study. As a result of the treatment of the cocoon pupa with an infrared ray, hot air and chemical methods, the yield, color properties and solubility of the cocoon shell were compared and analyzed.