Education is critical to a nation's growth because it develops the mind of the individual to be a useful member. Reform of education has a central role in nation development. It should include teaching the students how to think of themselves and to have confidence in their knowledge. This requires highly respected and motivated teachers who have language awareness and they have good level in language proficiency .Teachers must be kept abreast of new teaching methodologies, scientific breakthroughs and literary master pieces. The purpose of this study is to finding out the level of Iraqi EFL preparatory school teachers' language awareness and classroom language proficiency. In addition, to improving the correlational relationship between teachers' language awareness and teachers' classroom language proficiency . To achieve the aim of the present study, a sample of (250)Iraqi EFL preparatory school teachers randomly chosen from the general directorates of education in Baghdad .The instruments of this study are a questionnaire has been constructed for measuring EFL preparatory school teachers' language awareness and the second tool is the EFL teachers' classroom English proficiency Scale. The main findings show that it is statistically significant and the sample has a satisfactory level of language awareness. Moreover, the results indicate a positive correlation between EFL teachers' level of language awareness and their use of classroom language proficiency .