Based on the theory of attitude-behavior relations, this research builds the framework model to make the empirical study by using the community elderly care service sample from Chengdu city, Sichuan province. The empirical data results indicate that the community trust is positively and significantly affected by two factors, the perceived community image and the perceived community service quality, and the community trust further promotes the resident's intention to take part in the community elderly care service. Moreover, the community trust partly mediates the relationship from the perceived community image to the community trust, and fully mediates the relationship from the perceived community service quality to the community trust. Therefore, the empirical results of this research can provide some guidance for understanding the importance of community trust in the community elderly care service management practices.