This study aims to verify the effects of short-time core stabilization exercises on the musculoskeletal system of childcare teachers for the duration of eight weeks. The participants consisted of 10 childcare teachers who had no experience with physical exercises beforehand. The short-term core stabilization exercises were performed three times a week, (twice at work, once at home) for 25 minutes each time, 8 weeks. For verification, the effects of core stabilization exercise measurement variables, body composition, muscular strength, muscular endurance, flexibility, core dynamic balance, core isokinetic muscle functions, and the pain index of each participants were measured.BR In the case of body composition, eight weeks of short-time core stabilization exercises did not show any significant changes in general, but the percentage of abdominal fat has noticeably decreased (p.01). For basic physical strength, flexibility (right-shoulder and forward bending for upper body), and muscular endurance, results have been significantly improved (p.05). For core dynamic balance, the range of motion of all joints excluding anterior flexion increased slightly, the symmetrical difference between the front-back, left-right, and anterior-left and right 45° directions decreased but there was no significant difference. Finally, for the core isokinetic muscle function, the maximum torque of all angles and the 90° flexion/extension ratio was significantly improved (p.05). Additionally, the pain index of both the shoulder and the back have noticeably decreased (p.01).BR The eight-week short-term core stabilization exercise program showed beneficial effects for body composition, flexibility, muscular endurance, core muscle functions. As a result of these effects, the study shows noticeable reduction of musculoskeletal pain.