Abstract: Objective This smdy was conducted to analyze the distribution and the epidemic trend of morbidity and mortality of malignant tumors in 2004 in Xiuzhou district of Jiaxing city．Methods Epidemiological analysis was performed on the morbidity and mortality of malignant tu-mors in 2004 in Xiuzhou district Results The morbidity and mortality of malignant tumors were 227.98／Lakh and 166.73／Lakh respectively in 2004 in Xiuzhou district，higher than those in Zhe-jiang province (morbidity 213.92／Lakh and 131.85／Lakh)The top five malignant tumors(except tie tumors of the female breast and reproductive tract) were much tie same as those in reports concerned. The ratio of morbidity and mortality presented multiproportional growth in various age groups of less than 40 years The morbidity and mortality of malignant tumnors in those more than 50 years of age increased remarkably. Of the 509 cases who died of malignant larlrors，them were 47 cases with no report of disease before death，and twenty eases with morbidity reports before death，but identified as death from non—malignant tumors in their death reports，accounting for 9.27％and 3.39％ of the total of the dead．Respeetively．Conclusion The morbidity and mortality of malignant tumors in male are higher than those in female in 2004 in Xillzhou distriet，with atendency of their attacking younger population 82.91％ patients died of the diseases within two yeals from the definitive diagnosisto death The actual numbrer of the suffers and the dead can be corrected by checking up the death reports of malignant tumor or investigating causes of death from the morbidity reports，which is one of the links in good surveillance reports and manage-meat of malignant tumors It is believed that early surveillance of malignant tumors is of substan-tial significance in the improvement of health care．