The aim of this study was to examine the psychometric properties of the Turkish version of the Consultation Self Efficacy Scale; another aim was to examine school counselors' knowledge levels of consultation self-efficacy, difficulties they face in conducting consultation services, their needs and support resources, their suggestions for increasing the impact of the consultation service they offer and their perception of self-efficacy to provide consultation service. Convergent parallel pattern, one of the mixed research designs, was used. The study groups included 787 school counselors. In addition, school counselors were determined to have serious limitations in their knowledge about consultation and they found their consultation training mostly inadequate because they think that the consultation training they had received was weak. As a result of the research, experienced psychological counselors who graduated from department of psychological counseling and guidance and took courses on consultation were observed to have higher perception of consultation self-efficacy. School administration was considered as the most frequent source of support while parents as the least one. The most stated suggestion for enhancing the impact of the consultation was to increase the consultation education. As a result, it was revealed that there is a need for studies on consultation education for both counselors and students of psychological counseling and guidance.