Abstract: According to the heat transfer principle, the heat transfer between cylinder ektexine of hot-blast stove and the air was simulated for understanding the heat distribution principle during hot-blast stove heating process in greenhouse. It showed that the cylinder ektexine temperature was decreasing along with the distance to the hot-blast stove. The heat exchanged by nature convection between cylinder ektexine and air was equivalent to that from the holes on plastic cylinder. The more holes on plastic cylinder, the greater the heat exchange to the air in greenhouse. The location of hot-blast stove had a big influence on the air temperature. The air temperature of the side which was near the hot-blast stove was higher obviously than that in the other side. At night-time, air temperature at upside was higher than that at bottom in the same section, and air temperature at the south side was higher than that at the north under 1m. But for above 1 m, it was adverse. The research is expected to provide some references for reasonable installation and disposition of the hot-blast stove.