The data presented in this article were the basis for the study reported in the research articles entitled �Statistical assessment of experimental observation on the slug body length and slug translational velocity in a horizontal pipe� (Al-Kayiem et al., 2017) 1 which presents an experimental investigation of the slug velocity and slug body length for air-water tow phase flow in horizontal pipe. Here, in this article, the experimental set-up and the major instruments used for obtaining the computed data were explained in details. This data will be presented in the form of tables and videos. © 2017 The Authors