iarjhssIARJHSSIARJHSS2708-6267https://doi.org/10.47310/iarjhss.2021.v02i02.023The Negative Transfer in Non-English Major Students’ English Writing Errors at the University of Transport and Communications Campus in Ho Chi Minh CityThaiThi XuanHaUniversity of Transport and Communication, No.3 Cau Giay Street, Lang Thuong Ward, Dong Da District, Hanoi, VietnamDuring the COVID-19 pandemic, all universities in Vietnam require most students to study and sit examinations online. Besides, most students are self-consciously taking part in E-teaching and doing exercises posed by teachers in the learning process. The research focuses on the grammatical interference made by non-English major students in the University of transport and communication Ho Chi Minh Campus in their online English writing compositions, then to provide some workable solutions to avoid the negative transfer. We conducted a survey in a group of 50 non-major students from the B1-level course. The findings supposed that there was grammatical interference as the manifestations of negative transfer in the students’ writing. Students' grammatical interference in their writing texts is highly influenced by their first language, Vietnamese.