Electronic Journal of Differential Equations, Vol. 2007(2007), No. 154, pp. 1-8. Title: Existence of positive solutions for the symmetry three-point boundary-value problem Author: Qiaozhen Ma (Northwest Normal Univ., Lanzhou, Gansu, China) Abstract: In this paper, we show the existence of single and multiple positive solutions for the symmetry three-point boundary value problem under suitable conditions by using classical fixed point theorem in cones. Submitted November 24, 2006. Published November 16, 2007. Math Subject Classifications: 34B10. Key Words: Positive solution; three-point boundary value problem.