Abstract: The concept of the conventional tillage, minimum tillage and mulch tillage were introduced. The fundamentals of the mulch seeding with no tillage were discribed.The technology of the mulch seeding with no tillage for summer corn is the achievement of our research lasted several years. Today it is being extended. This new technology includes three field operations - wheat harvesting with straw chopping and spreading, direct seeding and fertilizing, weed control with herbicide spraying and it also includes six farming techniques - seed treatment, mulching, direct seeding, granulated compound fertilizer, application, herbicide spraying and insect control.We developed a mulch seeder (2BQM-6D) as an essential one for practising this new technology. This mulch seeder was passed appraisal and was produced in batches. The principle of the chisel coulter we developed and being used this mulch seeder is quite different from the disc coulter which is usually fitted to the no till planter in other countries. Therefore, the mulch seeder with the chisel coulter is less heavy, less costly and more suitable to Chinese condition.The technology of the mulch seeding with no tillage for summer corn has remarkble economic, ecology and social effects due to its increased yield, saved fuel consumption, reduced labour required and water and soil conservation etc in comparision with the conventional tillage.It differs from no till farming. It is only adopted during summer, the field will be plowed during autumn, then the problems induced from continuous no till farming can be avoided and the advantages of the no till farming can be kept.This new technology provides an effective means and bright propects for reaping high yield of wheat and corn production.