This research criticizes the phenomenon of language xenomania in relation to the implementation of Presidential Decree number 63 of 2019. The aim of this research is to describe the phenomenon of language xenomania in writing national competition pamphlets and describe the relationship of language xenomania to its implementation in Presidential Decree number 63 of 2019. This research uses qualitative methods, with data taken from social media Instagram in the form of national competition pamphlets. Data collection techniques use documentation and screen capture techniques, which are then analyzed using mark-reading techniques and translational techniques which are extralingual equivalent methods. From the research results, it was found that the national competition pamphlet which was analyzed contained 49 vocabulary words using English which were differentiated based on the position of the writing in the pamphlet. 9 vocabularies are found in the upper part of the pamphlet, most of which discuss the title of the competition being contested, 30 vocabularies are found in the body of the pamphlet, most of which discuss the provisions and benefits of participating in the competition, and 10 vocabularies are found in the bottom pamphlet, most of which are discussing cooperation and sponsorship. This phenomenon indicates that there are violations and things that do not heed the rules and laws for using the Indonesian language, specifically in Presidential Decree Number 63 of 2019. This violation indicates that users of the national language still seem to ignore the existing regulations regarding the use of the national language in public spaces, and still think that by using a foreign language, the object being linked will attract more attention.