The variable overlap rate is investigated on the basis of ultrasonic vibrations in the cladding experiment to improve the current limitations in the overlap rate selection. Furthermore, the performance of cladding layer with a low overlap rate is investigated. The initial overlap rates are set to 33%, 50%, and 66%, and observations and comparisons of the macroscopic appearance between the 33% overlap rate and other overlap rates of the cladding layer are conducted. A comparative experiment that employs a 33% overlap rate of the cladding layer without ultrasonic vibration is also performed. The comparative samples are first processed via electrical discharge machining, followed by observations of their metallographic microstructures and evaluations of their hardness and wear resistance. The results show that the macroscopic appearance of the cladding layer of the sample with a 33% overlap rate exhibits wavy stripes, whereas no wavy stripes are observed at the other overlap rates. The good cladding effect is obtained using a 33% overlap rate, with the ultrasonic vibrations deteriorating the quality of laser cladding layer. This analysis outlines a useful approach for selecting the overlap rate when applying ultrasonic vibrations to laser cladding experiments.