Speaking as well as pronunciation is one of the weak points of Vietnamese students when learning English. Lack of motivation, insufficient English-speaking environment, and inappropriate learning methods are some of the causes that lead to their poor pronunciation. The study investigated the impact of the technique of shadowing on pronunciation skills of non-English majored students at Thuongmai University. With the participation of 48 freshmen from Marketing Faculty, the data collected from survey questionnaires and interviews were analyzed to find out the students’ challenges in pronouncing English and the effectiveness of shadowing technique on developing participants’ pronunciation. The outcomes proved that consistent shadowing practice significantly enhanced students’ English pronunciation.Speaking as well as pronunciation is one of the weak points of Vietnamese students when learning English. Lack of motivation, insufficient English-speaking environment, and inappropriate learning methods are some of the causes that lead to their poor pronunciation. The study investigated the impact of the technique of shadowing on pronunciation skills of non-English majored students at Thuongmai University. With the participation of 48 freshmen from Marketing Faculty, the data collected from survey questionnaires and interviews were analyzed to find out the students’ challenges in pronouncing English and the effectiveness of shadowing technique on developing participants’ pronunciation. The outcomes proved that consistent shadowing practice significantly enhanced students’ English pronunciation.