The purpose of this study was to find out about the effects of short-term Kettlebell exercise on the lower body strength and walking functions of the elderly in order to prevent injuries such as physical activity of the elderly due to rapid aging society. The study was conducted 3 times a week for 6 weeks on D City women aged 65 or older. Kettlebell weights ranging from 4 to 8 kg were used for Kettlebell dead lifts as well as Kettlebell double arm swings, which are appropriate weights for female beginners. It is important to note that all participants were under minimal physical strain and if at any point the exercise had caused them too much pain, it was stopped immediately. The same number of sets (a total of 5 sets) was set for each exercise. The rest time between sets were applied to allow breathing to return. For the lower body strength test of the participant, the lower core function test (measurement of standing on the chair) was performed. The OptoGait consists of two 1meter long receive bars and a webcam (Logitech Webcam Pro 9000), each bar has 96 light-emitting diodes (Light Emitting Diode): While the subject walks between two parallel bars, the double support, the Gait cycle, the Live unit, and the Walk speed. The results of the application of the Kettlebell movement are as follows. The test result increased from the previous 11.90 (rep) of the athletic group to 15.10 (rep). The walk-through test did not produce any statistically significant differences in all measurement categories, but the numerical difference was insignificant in the group of movements. These results suggest that short-term kettlebell motion is an effective exercise for women of the elderly, and that for the walking function it is necessary to verify more clearly the effects through additional re-measurements.