The main objective of This research was to identify and validate the characteristics of the effective teacher in the elementary period.The first part of the Q-method was used. The statistical population in this section was all faculty members of educational sciences of Tehran universities(N=349),that20of them were selected according to the purposive sampling and snowball.The Data collection tool is the Q-diagram.Its reliability was confirmed by reviewing40documents and approved by3experts university.The validity of thequestionnaire was84/0.The second part is based on exploratory factor analysis.The statistical population of this study was all the professors of educational sciences in Tehran universities and elementary education groups of Tehran(N=987).The random sampling method was325people.The data collection tool was a researcher-made questionnaire whose content reliability was confirmed by3experts and validity (α=96/0).The main findings indicated that65characteristics were identified in7dimensions of personality traits,religious-ethical education,Reflective,qualifications and competencies,effective teaching,effective classroom management,and monitoring and evaluation.The7dimensions was confirmed,but between of65characteristics,5characteristics have not been validated.