A better anti-blocking capability of no-tillage planter in the stubble mulch farmland has become one key factor of production efficiency and seeding quality. Anti-blocking necessities and research status of anti-blocking technology for no-tillage planter were analyzed in this paper, some research directions of anti-blocking technology for no-tillage planter were put forward, such as finding the key point of anti-blocking technology of no-tillage planter, strengthening the combination between anti-blocking technology of no-tillage planter and operation technological measurement, strengthening the basic research of mechanical and geometrical characteristic of crop stubble and reducing power consumption and rotation speed of anti-blocking mechanism, and increasing capacity of directional throwing, and improving flexibility of all kinds of stubble mulch farmland and security and so on. And some throwing movement rules should be strengthened to research by modern testing instrument and technology such as virtual instrument technology and high-speed photography, in order to research reforming approach to anti-blocking capability, and improve production efficiency and seeding quality of no-tillage planter and quicken spread and application of conservation tillage technology for dry-land farming.