Abstract: Based on the purpose of constructing a general competency model of principals in primary and secondary school, we totally reviewed 8 academic dissertations and 6 journal papers from recent 10 years’ documents, with the amount of sample is 2998 and the number of competences is 224. Through meta analysis, we construct a general competency model involved 9 competences of principals in primary and secondary school. Frequency analysis showed that leadership is the most important competence in all, the second are training others and creativity; self-control and interpersonal sensitivity lie the third, and the fourth are problem analysis, influence, relationship building and communication. On the one hand, the result integrated the relatively scattered outcomes about principals’ competency research; on the other hand, it can also provide empirical evidence for standard competency training to principals in primary and secondary school.