Education is not only focused on the intellectual factors that a person has while studying butalso must be integrated with other factors such as attitudes, behavior, and character. With this,thearticledescribestheroleoftheprincipalatSMPN. 4 Bangkala JenepontoMadiunindevelopingprofessional teachers in the educational process who can improve student character. The datacollection technique used is interviews. Data processing and analysis techniques through datareduction,datapresentation,anddrawingconclusions.Theroleofschoolprincipalsinimproving teacher professionalism at Cendekia Vocational Schools by empowering teachers ismanifested in IHT (in House Training) activities, KKG (Teacher Working Group) or MGMP(Subject Teacher Consultations) activities and directing teachers to set good examples, provideguidance,direction,holdingcharacterdevelopment,extra-curricularandreligiousactivities.As well as creating new activities in the form of planting vegetables and raising catfish whichare divided into each class. In addition, SMPN. 4 Bangkala Jeneponto Madiun holds character developmentactivitiesthatinstillthecharacterofstudentswhoarehonest,disciplined,independent,creative,lovethehomeland,democraticattitude,hardwork,lovetoread,carefortheenvironment, social care, religious, sense of responsibility, and especially according to theschool's vision and mission that can develop students who are skilled, competitive, have faithandfearGod Almighty.