The most common preventable cause of mortality and sickness in the world is tobacco usage, due to an improved understanding of the health dangers associated with smoking, indoor smoking prohibitions, restrictions on media and advertising and increasing public awareness, the rate of cigarette smoking has dropped in the United States over the past 45 years, However, these effective initiatives are threatened by the increased usage of other tobacco products like hookah.To determine the efficacy of trans theoretical model intervention for improving behaviors related to electronic Hookah smoking among healthcare workers in Mosul hospital. A simple random sample with probability of 56 males and 2 females health care workers (HCW) for the two group with different position. The sample was collected for the study group in Mosul General hospital that they were 58 HCW who they are electronic hookah smokers/ 29 HCW who agree to participate in the study and the others has refused participation. the data are being collected in the beginning of October 2022. through the use of the study instrument and finishing in May 2023. Data is analyzed using the "Statistical Package for Social Science (SPSS) software for Windows (Version 26)".This finding the explain the mean difference for pre-test, post-test 1 and post-test 2 that there is marked change in mean about (0.6 to1.10) in study group while there is no noticeable change in mean in control group.This study concluded that the health intervention for behavior change through Transtheoretical Model demonstrates the importance of Electronic hookah smoking cessation and has a positive impact on health care workers perceptions of Stage of change, process of change, decisional-balance and self-efficacy/temptation.