With the ease of use and a wide variety of choices of smartphones, it significantly aﬀects the ways of life in terms of socializing, applications, gathering, and sharing information. Little do the people know that it can also aﬀect the posture. This is where an introduction of exercise that targets the muscles involved in the impaired posture comes to maintain a proper posture. This study aimed to evaluate the eﬀect of deep cervical ﬂexor training on the craniovertebral angle and muscle endurance of students with forwarding head posture. The study is an experimental type of research that was utilized to thirty (30) junior high school students who had undergone fishbowl technique selection and assigned in two (2) groups namely control and experimental group. Craniovertebral angle and deep neck ﬂexor endurance test were used to determine the pre- and post-test of both groups. There is a significant diﬀerence in the paired t-test result of pre- and posttest outcome of deep cervical ﬂexor training of the experimental group in terms of CVA. In contrast to DNFET, there is no significant diﬀerence in the paired t-test result of pre- and post-test intervention of deep cervical ﬂexor training of the experimental group. Deep cervical ﬂexor training is useful to increase CVA.