This study aimed to investigate basic process skills, integrated process skills and overall science process skills of science teachers in terms of some variables. This study had a survey design. The study population consisted of 170 science teachers from a province located in the Central Anatolia Region of Turkey. The study data were obtained from science process skills test arranged by Aydogdu (2006). The results of the study showed that especially integrated process skills of science teachers were not at a satisfactory level. Other results revealed that basic process skills of science teachers differed on their in-service training on these skills and seniority whereas integrated process skills of science teachers on the frequency of use of these skills in the classroom. Finally, results indicated that overall science process skills of science teachers differed on the frequency of use of these skills in the classroom and on in-service training on these skills. This study suggests conducting some further studies to bring science process skills of science teachers to a satisfactory level.