Objective:To investigate the effects of estrogen receptor(ER) and progesterone receptor(PR) on long term prognosis of young patients with breast cancinoma. Methods:ER and PR statuses in 370 patients with breast cancinoma(younger than 35 year) were immunohistochemical examined and followed up. Results:Totally 366 out of 370 patients were followed up for 24 to 288 months,with an average of 132.64 months. ER and PR positive rates were 44.86%(166/370)and 38.11%(141/370)respectively. ER and PR statuses were not associated with 2-year survival rate and 5-year survival rate. There were differences in 8-,10-,15-year survival rate between ER(+) and ER(-)( χ2=5.992,P=0.014; χ2=7.025,P=0.008; χ2=6.221,P=0.013). Eight-year survival rate in PR(+) was higher than that in PR(-)( χ2=9.552,P=0.002);2-year survival rate in ER(+)PR(+) was not different from that in ER(-)PR(-)( χ2=1.963,P=0.161);but 5-year and 8-year survival rates in ER(+)PR(+) were higher than those in ER(-)PR(-)( χ2=7.365,P=0.007; χ2=5.236,P=0.022). Conclusions:ER and PR are important long term prognostic factors in young patients with breast canci-noma. Simultaneous exam of ER and PR is of higher prognostic value. ER(-)PR(-) and ER(-)PR(-) indicate poor prognosis,therefore auxiliary treatment including chemotherapy should actively be put in force and followe up should be strengthen in order to improve the prognosis.