三缺一劇團嘅名，係因為創團當初，四個團員每次排演討論， 梗有一個唔知點解唔能夠出席， 喺開玩笑嘅情況之下 ， 就用咗麻雀術語「三缺一」做團名。而呢個決嘅概念， 就啱啱係「圓滿」嘅對照。三缺一所關注嘅焦點，係日常生活經驗中嘅社會議題，好似家庭、愛情、政治、歧視、同志等等。以「人」為出發點，藉人與人間相處嘅「缺」，同臺下觀眾做無言嘅交流，引起共鳴，一齊省思對立於缺嘅「圓」。
The name of the troupe is because at the beginning of the founding of the troupe, every time the four members of the troupe rehearsed and discussed, of course, one of them didn't know why he couldn't attend, and in a joking situation, he used the sparrow term "three missing one" as the name of the troupe. and the concept of this decision is just the opposite of "consummation". The focus of attention is on social issues in everyday life, such as family, love, politics, discrimination, gays, and so on. Taking "people" as the starting point, and taking advantage of the "shortcomings" between people and people, and making wordless exchanges with the audience, arousing the channel and reflecting on the "circle" that is opposed to the lack of perfection.