The core of the characteristic specialty construction is characteristic talents training. The paper elaborated the understanding of the connotation of characteristic specialty construction; put forward the feature of talent training with ability training. Based on the concrete practice of the characteristic construction of building environment and facility engineering specialty in Chongqing University, the talent features of this specialty were summarized, the construction target, main construction content and construction program were illustrated, then the construction of the teaching team of characteristic specialty, talents training program and curriculum reform were introduced.