In all education system, the performance of teachers is one of the handfuls of factors determining school effectiveness and learning outcomes. This paper intended to understand the teaching competency of graduate level teacher trainees of Kerala. Main objectives of this study are to compare the teaching competency level of graduate level teacher trainees in terms of their locality, type of management of their institution and qualification of the trainees. 150 graduate level teacher trainees from Thiruvanthapuram district is selected as sample for the study. Data were collected by using teaching competency scale prepared by the investigator with the help of supervising teacher. The data were analysed by t-test. The result of the data revealed that the there is no significant difference in the teaching competency level of graduate level teacher trainees in terms of locality and qualification of the trainees. In the case of type of management of the institution there is significant difference is seen in the level of teaching competency of graduate level teacher trainees.