The aim of this study was the evaluation of the researches that were conducted in our country on proficiency of the teachers in terms of subject, aim, method and results, and was to state the necessary points to be taken into consideration in the choice of methods. 21 researches in the scope of proficiency of teachers were examined for this purpose The data were qualitatively collected in the research and the content analysis method was adopted among the data analyses methods. According to the data acquired from the research, it was determined that the studies were generally conducted on prospective teachers. quantitative methods were applied. and the data were collected by surveys. The researches were generally on determining the professional. proficiency perceptions and in the research results, there were mostly statements about the professional proficiency levels of the participants This situation displays the tact that in most of the studies the adopted method is not in accordance wart the aim of the study and that there are inconsistencies from the points of aim and results.