Secondary schools in Korea have been faced with with several critical problems with regard to science education, with one of the most fundament problems being associated with secondary school science teacher education and in-service training. Therefore this study, which is a part of project for the improvement of science teaching in secondary schools, had its purposes to inquire into the following are as. ${circ}$systems for science teacher education ${circ}$curricular contents and its operations of science teacher education ${circ}$systems for in-service teacher training and its operations ${circ}$analyses of problems associated with science teacher education and in-service teacher training. In order to fulfill these objectives this study used methods of literature review, survey, and interviews. The major findings are as follow: ${circ}$curricular hours of subject matter education are not sufficient for competent science teacher. opportunities for self-training in major are as are seldom given to the most of the science teachers ${circ}$systematic organization for in-service traings is in urgert need. In addition to there-findings strategies for improving science teacher education and in-service trainings are suggested in this paper.