An improved smokeless environment-friendly stemming comprises, by weight, 30-50% of flint clay aggregate, 8-12% of Suzhou No.1 mud, 1-1.5% of monatomic silicon fine powder, 5-10% of andalusite, 1-3% of cerium oxide fine powder, 3-5% of zirconium-silicon micro powder, 8-15% of corundum fine powder, 5-10% of zirconite powder, 3-5% of silica powder, 8-15% of a binding agent, 0.2-0.5% of a humectant and 0.1-0.3% of a plasticizer. The improved smokeless environment-friendly stemming is simple in production process, moderate in cost, easy to operate, and compact in structure, no smoke is released inthe using process, more environmental friendliness is achieved, the scouring resistance is good, chambering is not prone to happening, opening and blocking are easy, plasticity is good, the body density is proper, the phenomena of iron clamping and iron notch breaking are avoided, baking is not needed, direct installation and use can be achieved, and the heating hardening time is short.