Objecting to the sectarianism is a distinct theme of Mao Zedongs cadres appointment thought, and adhering to the outlook of appointing cadres from all corners of the country shows his objection to the sectarianism and is his scientific method of choosing a suitable person for the job. Mao Zedongs outlook of appointing cadres from all corners of the country is of scientific connotations, distinctive features, and profoundly philosophical backgrounds, which provides an importantly methodological reference values for us to appoint the cadres in the new period.