The main purpose of this study is to explore the influences the work identity of contractor brings about on contractors and their immediate supervisors. By means of qualitative methods, including interviews and observation, data are collected from three pairs of contractors and their supervisors. In detailed, contractors’ and supervisors’ perspectives toward the identity and problems they meet are discovered in this research. How supervisors supervise the blended workforce is also addressed. Additionally, other related issues are discussed, for example, regular workers’ attitudes toward contractors. The results show that contractors dislike the identity of contractor; there is little difference between supervisors’ supervision over contractors and regular worker; and, there is a peaceful and harmonious relationship between contractors and supervisors.