Preparation method for Torvosaurus liquid and application of Torvosaurus liquid

The invention provides a preparation method for Torvosaurus liquid. The Torvosaurus liquid is prepared by taking 25g of male silk moth, 25g of acanthopanax, 17.5g of wine-processed semen cuscutae, 20g of herba epimedii, 10g of salt-processed prepared rehmannia root and 10g of salt-processed fructus psoraleae as raw material medicines; the Torvosaurus liquid is prepared by microwave extraction, so that the Torvosaurus content is greatly increased, and the dose is reduced. The invention also provides the application of the Torvosaurus liquid in preparing drugs for restraining murine melanoma 16B cell proliferation and drugs for treating or preventing dengue virus infection.