In this paper, we study the existence of positive solutions for singular impulsive differential equations with integral boundary conditions $${u^{{prime}{prime}}(t)+q(t)f(t,u(t),u^{prime}(t))=0,;t{in}mathbb{J}^{prime},\{Delta}u(t_k)=I_k(u(t_k),u^{prime}(t_k)),;k=1,2,{cdots},p,\{Delta}u^{prime}(t_k)=-L_k(u(t_k),u^{prime}(t_k)),;k=1,2,{cdots},p,\u=(0)={int}_{0}^{1}g(t)u(t)dt,;u^{prime}=0,$$) where the nonlinearity f(t, u, v) may be singular at v = 0. The proof is based on the theory of Leray-Schauder degree, together with a truncation technique. Some recent results in the literature are generalized and improved.