Abstract: It is needed to consider the energy and security constraint in the proceeding of designing routing protocol of the highly sensitive data transmission of wireless sensor network.Based on the analysis and studies of the Sybil attack，this article takes the trust opinion of nodes into account，realizes the improvement of DD routing algorithm，and makes the full theoretical analysis and the simulation experiment comparison between the two improving and improved routing algorithms in order to provide the ideas for the research of the trustful routing system.

摘要： 无线传感器网络中高敏感度数据传输业务要求路由协议设计时必须考虑能量与安全约束。在分析和研究Sybil攻击的基础上，在路由选择过程中考虑节点的信任度评价，实现对DD路由算法的改进，并对改进前后路由算法作了充分的理论性分析及仿真实验比较，为可信路由体系的研究提供了思路。