This article focuses on the modification of Malangese Mask Puppet, a traditional art that has been developed in Malang, East Java, for long time. This research aims to finds out changes in Malangese Mask Puppet in order to maintain the existence of the art in this era, by which popular culture dominated. The article is written to answer questions, first, how do modifications of Malangese Mask Puppet were done both in performance and crafting aspects, and second, how do the modifications influence the fuction of Malangese Mask Wayang. The research uses a qualitative method with interview, observation, and document analysis as data collection technique. The data analysis is conducted through triangulation technique. The results are that modification is conducted by simplifying and beautifying the form of some elements such as clothes, accessories, and the material of mask crafting. Meanwhile, the modification of ideas are implemented through the changing of some traditional patterns, such as shortening the duration of performance, creating the new rule to involve women and kids as an active artist of Malangese Mask Wayang. The modification of Malangese Mask Wayang influences the function and role of the art as a commodity or product.