My aim in this study was to examine suggestions inherent in the literature on process drama that it has viability for enhancing ESL/EFL learners’ language proficiency .This intention was enacted by exploring effects of a process drama intervention in training English learners’ use of oral communication strategies (OCSs) in a comparison context with a more conventional drama technique, role-playing. Dependent variables used as measures of effect were the variety of OCSs that learners used and with what frequency. The respective approaches used a series of planned lessons incorporating techniques of process drama, and a similar set of lessons using scripted role-play with 53 EFL participants from a Junior College in southern Taiwan. Quantitative and qualitative data were gathered from participants’ responses to questionnaires based on an adapted Oral Communication Strategy Inventory (OCSI), oral exams, after-task reflection surveys, semi-structured group interview, questionnaires of Foreign Language Classroom Anxiety Scale (FLACS), journals and video-recording. Excerpts of class activities of each group are used as supplemental reference.