20 wheat varieties（lines）were used in this experiment. 15 quantitavtive characters were analyzed,to difine correlation between main quantitative characters in wheat,The results showed that heritabitity of grain weight per spike,1000-kernel weight. train number per spike,length of the first node was very high; grain number per spike was positively correlated with the grain weight per spike; plant height, 1000-kernel weigh,the first node,second node were positively correlated with the grain weight per spike; direct path-coefficient of plant height, I₂,spikelet number per spike, 1000-kernel were positive effect to grain weight per spike.