Abstract: The size testing that the main spring wheat output having assembled the data data, having wielded the gray system theoretical analysis method exploration composes factor room correlation degree with Ba Yan county nur city spring wheat strange land multiple spot concerns the main body of a book. That result indicates be most close properties, and output concerns is that the weight of a thousand seeds,correlation degree are 0.71999,secondly be that the mu of ear number,correlation degree are 0.71685,again in proper order be that the ear granule number, the ear are long,are high,fundamental seedling and childbearing period. The new breed of spring wheat taking high yield and high quality as target in bar City breeding responds to the breed choosing big granule,seediness, many ears.