This study aims to investigate the mediating role of employee happiness in the effect of the quality of work-life on employee intention to quit. Data were collected using a questionnaire developed regarding prior related works. It was administered to a sample consisted of 122 employees selected from four fast-food restaurants in Jordan. Data analysis was conducted using structural equation modelling via Smart-PLS3; the results revealed that the quality of life had significant direct effects on both employee happiness and employee intention to quit. The first effect was positive, while the second was negative. Employee happiness had a significant impact on employee intention to quit. Consequently, the results indicated that employee happiness played a significant mediating role in the effect of the quality of work-life on employee intention to quit. It was concluded that the quality of work-life is not enough to reduce employee intention to quit, which means that organization should pay great attention to employee happiness to ensure the positive effect of the quality of life and to reduce employee intention to quit.