The invention discloses an artificial cultivation method of wild pinellia. The method includes the steps of land selection, land preparation, seed selection, seed soaking, timely seeding, field management, prevention and control of plant diseases and insect pests, harvesting, treating and the like. A self-prepared plant ash soaking solution is adopted for seed soaking, a good growing environment can be provided for pinellia tubers, plant diseases and insect pests can be reduced, and survival rate can be improved. A soil conditioner is applied during land preparation and base fertilizer applying, the soil conditioner can improve soil, break soil hardening, loosen soil, increase organic matters in the soil and promote soil microorganism activity, and can decompose animal and plant residues and trace metal elements in the soil to convert the same into nutrients of plants, serve as fertilizer, improve disease resistance of pinellia and promote quick growing of the pinellia. The artificial cultivation method is simple and easy to implement, simple and convenient in management, easy for growers to operate and implement, suitable for large-scale cultivation, high in yield and good in quality and completely meets market requirements.