This study was conducted to investigate the writing anxiety of all English 230 students during the second semester, school year 2014-2015 at Mindanao State University Marawi City. Specifically, the study sought to find out the level, types, and causes of the writing anxiety of the English 230 students. The researcher made use of both quantitative and qualitative methods of research. Findings revealed that majority of the teacher-respondents and parent-respondents preferred trilingual education. As to the language attitudes of Meranaw teacher-respondents and Meranaw parent-respondents on the use of Meranaw (Mother Tongue) as a language of instruction (LOI), majority of them favoured the use of Meranaw inside the classroom. However, in some aspects of mother tongue use as LOI, they showed vague understanding on the concepts relating to the difficulty of learners to learn Filipino as a subject if they are exposed to Meranaw language and the enhancement of their writing skills if Meranaw language is used in the classroom. They further expressed their negative attitudes on some aspects like the difficulty of learners to understand English if they are exposed to Meranaw language, their dependence on its use when learning English, and their dependence on translating English words into Meranaw. These respondents also have different views on the idea that there are adequate teaching materials to conduct learning in Meranaw; that, teacher’s difficulty in translating some English words into Meranaw language might give the learners problems in their comprehension; and that using Meranaw language as LOI will retard mastery of the English language. The Meranaw parent-respondents, however, have no opinion towards these ideas. Regarding the enhancement of pupils’ reading ability and their difficulty in understanding all Meranaw words, the teacher-respondents have no opinion towards it while the parent-respondents expressed agreement to these ideas.