Objective: To analyze the situation and influence factors of catastrophic health expenditure in national forest areas in Heilongjiang Province in 2015, and proposes some measures to reduce the incidence of catastrophic health expenditure.Methods: The catastrophic health expenditure rate, average gap and relative gap calculation method and logistic regression analysis method were applied. Results:In the standard definition of 15%, 25%, 30%, 40%, the catastrophic health expenditure rates were 27.3%, 14.8%, 11.8%, 8.3%, the average gap were 5.3%, 3.2%, 2.6%, 1.6%, the relative gap were 19.4%, 21.6%, 22%, 19.3% ,in Heilongjiang national forest areas,in2015.Conclusion: The government should pay more attention to the poor people, increase the family income in multi-channel; prevention and timely medical treatment, reduce the risk of serious illness; increase investment in education, improve the education level of residents; pay attention to the elderly population, improve the medical security system