Abstract: In this paper, 439 species of regional trials rice from 2007 to 2011 were studied to analysis the correlation of yield level varieties and traits in order to study the medium indica rice development trend of rice production in Anhui Province. We studied the main factors that influence the effect of changes of indica rice production in Anhui Province. The results showed that, breeding level was constantly progress , production levels of breed varieties (combination) was continuous improve in Anhui. The correlation of yield factor showed that: to achieve the purpose of high and stable yield we should increase grain number per panicle and productive panicle based on the guarantee of seed setting rate. The results provide an important reference for the breeding of middle-season indica Hybrid Rice in Anhui Province.