Abstract: Objective The aim of this study was to describe the prevalence of malignant tumors in Harbin from 2015 to 2017 and provide the scientific evidence for cancer prevention and control.Methods The morbidity and mortality data of malignant tumors in Harbin were collected by Harbin Cancer Registry and Reporting System,and the incidence and death distribution of malignant tumors were described.Results In 2015-2017,there were 77,379 new cases of malignant tumors and 49,450 deaths in Harbin.The crude incidence of malignant tumors was 243.51/105,age-standardized incidence rates by Chinese standard population(ASIRC)was 171.76/105 in Harbin.The crude mortality of malignant tumors was 155.62/105,age-standardized mortality rates by Chinese standard population(ASMRC)was 106.79/105 in Harbin.The top 5 malignant tumors were lung cancer,colorectal cancer,thyroid cancer,breast cancer and liver cancer.The top 5 deaths were lung cancer,liver cancer,gastric cancer,colorectal cancer and pancreatic cancer.Conclusion The burden of malignant tumors is serious in Harbin.Lung cancer,liver cancer,gastric cancer,colorectal cancer,thyroid cancer and female breast cancer are the main malignant tumors that threaten residents.

Key words: Cancer, Incidence, Mortality, Harbin