To clarify the adaptability of new tussah silkworm variety Moyu in the process of flourish-ing,the flourishing experiments were carried out on Moyu,9906 and Kangda in part of Liaoning and Jilin provinces from 2020 to 2023.The results showed that Moyu outperformed the control varieties 9906 and Kangda in terms of single moth cocoon yield,disease resistance and stress resistance,and other yield and vitality traits.