This study was performed on the bread wheat genotypes in a randomized complete block design with three replications at the research farm of Islamic Azad University, Ardabil in 2011. Eleven traits such as number of grains per spike, number of sterile florets, plant height, biological yield, grain yield, harvest index, peduncle weight, psychological days to maturity, seed weight, panicle length and number of tillers per plant were measured were taker and measured. The results showed that the genotypes have significantly different characteristics. Genotype correlation was used for the present a correlation coefficient and causation because of its importance in comparison with phenotypic coefficients. There was positive and significant correlation between panicle length and number of grains per spike, grain yield and grain weight. Peduncle weight, plant height and grain weight has also a significant positive correlation. Plant height, number of grains per spike and tillers per plant showed positive and significant correlation and with grain yield represent negative and significant correlation. Grain yield, harvest index and grain weight showed a positive and significant correlation and harvest index with grain weight showed a negative correlation. Traits such as harvest index, grain weight and grain number per spike and grain yield had the highest direct effect on grain yield based on the analysis of causality. According to the results and genotype correlation these traits can be used as selection criteria in enhancing and improvement of performance in the breeding programs.