This article shows the Effectiveness of Digital Teaching Materials for Theater Arts Subjects for Junior High School in the form of the Wellmime Technique-Based "Ku Pantomim" Android Application. These research instruments are interview guidelines, questionnaires, and observation sheets. The data is analyzed using the mixed method. The results and conclusions of this study show the effectiveness of development products by 79% with cryptic "interested" and practical, including: 1) andriod application usage book "Ku Pantomim with syntax contained in learning design,; 2) Adroid application "Ku Pantomim" and 3) Wellmime Pantomime Technique book in which integrated the principles of pantomime techniques.