Abstract: The mRNA and protein expressions of FSH and FSHR were detected in some nonreproductive tissues of Beijingyou chickens by PCR and immunohistochemistry in this study. Subsequently, their correlation analysis also was performed. The results revealed that all of the FSHR mRNA, FSHR and FSH protein levels in five detected tissues (liver, heart, kidney, lung and duodenum) had the same distribution trend, and their expression level from high to low were the liver, heart, kidney, lung and duodenum. But FSHR mRNA, FSHR and FSH protein were not expressed in the spleen, stomach, breast muscle and thigh muscle. And FSH mRNA was not expressed in nine tissues. There was the significant positive correlationship (P＜0.05 or P＜0.01) between the tissue weight and FSH level in liver, heart, kidney, lung and duodenum, and there were also the significant positive correlations (P＜0.05 or P＜0.01) between the level of FSHR mRNA or protein and the FSH level in different tissues. In conclusion, it had been preliminarily revealed that FSH, coming from blood circulation, might induce the expression of the FSHR gene to promote the tissues development of the heart, liver, lung, kidney and duodenum in chicken.