This study was conducted with the aim of researching the impact of electronic tourism marketing systems on the characteristics and behavior of the digital tourist consumer in the presence of smart mobile phone technology (as an intermediate variable). Is there an impact of the use of smart mobile phone technology and its applications on the digital tourist consumer when completing the purchase of the tourism product. The electronic questionnaire was used as a means of data collection, which was launched through the Internet. The results of the study concluded that there is a significant relationship between electronic tourism marketing systems and the characteristics and behaviors of the digital tourist consumer, as well as the existence of a significant impact relationship between smart mobile phone technology and the characteristics and behaviors of the digital tourist consumer, in addition to the existence of a significant influence relationship between smart mobile phone technology and electronic tourism marketing systems . The results confirmed the existence of a significant effect of smart mobile phone technology (as an intermediate variable) on the influence relationship between each of the electronic tourism marketing systems and the characteristics and behaviors of the digital tourist consumer. By adopting smart phone technology and its tourism applications and integrating them into tourism marketing operations in Egypt.