Abstract: To explore the grain production potential and characters related to yield, this paper took 57 plants of F2 different genotypes of super- high- yield in wheat as materials and analyzed the yield characters, the correlation and path and regression between related characters. The results showed that: (1) Selective probability for super-high-yield plant (≥80g/plant) was 0.00518% in field. (2)The ears per plant, the grains per ear, 1000- grain weigh, seed setting panicles, grain weight per ear and grain density were significantly positive correlated to yield per plant, panicles of infertility was significantly negative correlated to yield per plant, and the plant height, the ear length and the 1000-grain weight showed no significant correlation. (3)The ears per plant was the greatest contribution to the grain weight per plant and decided 65.33% of the yield, the grain weight per ear, 1000-grain weight and the number of grains per plant decided 19.92%, 18.15% and 13.72% and 5.6% of the yield respectively. Selective probability for plant (≥80 g/plant) was 0.00518% in field.