English language teachers have been used to the presentation method of language teaching. This situation has led to the poor performance of students in some areas of English language studies. This study was designed to find the effect of digital language laboratory on teacher trainee’s achievement in oral English. A quasi-experimental design that involved the use of intact classes was adopted for the study. There were three research questions that were answered while three hypotheses were tested at 0.05 level of significance. All the seventy-seven year one students of the department of language studies, Enugu State College of Education Technical, Enugu and sixty students of the department of English, Institute of Ecumenical Education Thinkers Corner, Enugu were used for the study. In assigning the subjects to control and experimental groups, the seventy-seven students of ESCET and sixty students from Ecumenical were used respectively. The experimental group was exposed to a digital laboratory method while the control was exposed to the presentation method of teaching. The instrument used for the study was Oral Production Test. The scores obtained from the pretest were used for the item analysis and the calculation of the reliability indices. Applying Kuder Richard formula 20 the reliability indices of 0.98 was found.