The purposes of this study were to develop instructional videos for Lai Kammalor Drawing, to assess their effectiveness, and to compare students' ability before and after learning through instructional videos for Lai Kammalor Drawing. The participants in this study were undergraduate students who were majoring in Arts Education from a public university in Thailand. The study's purposefully selected sample was divided into two groups: 1) the sample group, which consisted of 43 students, and 2) the treatment group, which consisted of 20 students. The descriptive statistics (mean and standard deviation) as well as the t-test for dependent samples were used in this study. Three major results arose as a result of the research. To begin, the evaluation of the instructional video creation for Lai Kammalor Drawing yielded findings that were much higher than the usual average of 3.50 (mean=4.76, SD=0.34). Furthermore, the content and design were at excellent levels. Second, the instructional videos for Lai Kammalor Drawing were 80.67/83.88 percent efficient, above the necessary set of 80/80 percent. Finally, the posttest score was significantly greater than the pretest score at the 0.05 level.