The main result of this paper :Theorem 1 Under the assumption (H1) - (H4),the second-order Neumann boundary value problem (1) - (2) has positive solution.

• 定理1：假设条件(H_2)-(H_4)成立，则奇异非线性二阶微分方程Neumann边值问题(1)-(2)存在正解。