Electronic Journal of Differential Equations, Vol. 2014 (2014), No. 07, pp. 1-10. Title: Existence of solutions for iterative differential equations Authors: Pingping Zhang (Binzhou Univ., Shandong, China) Xiaobing Gong (Neijiang Normal Univ., Sichuan, China) Abstract: The presence of self-mapping increases the difficulty in proving the existence of solutions for general iterative differential equation. In this article we provide conditions for the existence of solutions for the initial value problem, in which the conditions are natural and easily verifiable. We generalize the relevant results and point out the mistake in some references. Submitted August 21, 2013. Published January 07, 2014. Math Subject Classifications: 34A12, 39B12, 47H10. Key Words: Existence; nonautonomous; iteration differential equation; Schauder's fixed point theorem.