Abstract: Based on two factors variety and density three levels field experiment, the tiller characters of three wheat variety are made a preliminary study. Results showed that Miannong 6 unit stem tiller number is 2.08~4.74,effective spike rate of tiller is 54.3%~59.3%,both are less than Mianyang 20(CK1).Compared with CK the productive tiller stage is the main difference of unit stem tiller capacity (before 20th,dec). About the difference of Miannong 6 is less between main stem and tiller, the CV(%) of stem tiller is 14.0%~15.7%, It is a grain number、1000 seeds weight and a spike weight are obviously higher. They are: 42.8~58.2、43.0g~50.3g and 1.84g~2.93g, all obviously character show out that are big spike, big grain and heavy spike. In order to achieve high yield, the cropping density should less than Mianyang 20 and so on.