Preschool teachers’ emtional labor influences their Job Involvement. According to the argument of Hochschild (1983), preschool teachers who interact with parents and children everyday must continually control their emotions to achieve their professional goals. Preschool teachers engage in a high level of emotional labor (Brotheridge & Grandey, 2002; Kamerman, 2000). Preschool teachers pay a high emotional price when teaching children and interacting with parents. At times, they must use positive energy from their personal traits to encourage themselves and remain dedicated to their work. This Psycholgoical capital including positive energy, positive thinking related to goal achievement, optimistic self-motivation, and the capability to make adjustments after frustration, can significantly and positively influence a person’s Job involvement.