This research entitled the communicative effectiveness in the religious rhetoric Al-Hasan Al-Basri as a model represents a theoretical and applicative study for the religious rhetoric, especially for Al-Hasan Al-Basri.. The communicative effectiveness has been studied starting from employing the linguistic, eloquent and logical techniques to find the ability of the rhetoric art to achieve the reaction between the sender and the receptor.To achieve the meaning of the communicative effectiveness in rhetoric,three communicative levels have been studied: the solidarity,directing and convincing.These three levels revealed the effectiveness of the eloquentmeaning between the communication parts and the ability of the rhetoric message to affect and convince.