Perceived Overqualification is a common experience in the workplace, However, it has received less attention from domestic researchers. Identifying the variables associated with this structure is essential to our understanding of how it affects job outcomes. Based on the theory of person-job fit, the purpose of this research was to investigate the effect of Perceived Overqualification on Counterproductive Work Behaviors by considering the mediating role of Job Boredom, Job Alienation and Emotional Exhaustion. This research is an applied one in terms of purpose and the method of data is descriptive-survey. The statistical population of this study was the employees of the Gas Company of West Azerbaijan Province. Based on simple random sampling method, 225 people were selected for the sample. The main tool for data collection was a questionnaire. Data analysis and testing of research hypotheses were performed using structural equation modeling. The results showed that employees’ perception of their Perceived Overqualification leads to their counterproductive work behaviors, In addition, the mediating role of Job Boredom, Job Alienation and Emotional Exhaustion in this relationship was confirmed. Introduction Unsuitability between the job and the employee can lead to many costs for the organization (Gholipour et al., 2010: 104-105). One of these problems is the soldiering phenomenon. Research conducted in the field of soldiering shows that when a person's education or knowledge, skills, and experience, which are the elements that make up competence (Ployhart et al., 2014: 371), are more than the job's requirements, a phenomenon called overqualification occurs. This situation brings the feeling of "being a big fish in a small pond" (Chu et al., 2021: 1) for employees, which is the basis for negative consequences at the organizational level. The results of some research show that the perception of overqualification is positively related to job burnout, turnover, counterproductive work behaviors, and job reseeking (Chu et al., 2021: 1). In general, the phenomenon of perceived overqualification among employees is one of the key issues that has negatively affected the quality of work life of human resources and their performance in the organization, and the main reason for this is the unsuitability between the job and the employee. Accordingly, the present study aims to investigate the combined model of the effect of perceived overqualification on counterproductive work behaviors with the mediation of job boredom, job alienation, and emotional exhaustion. Literature Review Perceived overqualification Perceived overqualification refers to having more knowledge, skills, abilities, and work experience than is required for a job (Chu et al., 2021: 1,Ye et al., 2017: 925). When studying the consequences of perceived overqualification for individuals and organizations, the most common theoretical framework is relative deprivation theory. This theory states that the feeling of relative deprivation arises when a person's perception of the desirability of reality is less than his/her expectation,therefore, perceived overqualification causes deprivation of a job that a person deserves, and as a result, it is associated with negative consequences for individuals and organizations (Erdogan, & Bauer, 2021: 4,Luksyte et al., 2022: 323). Job alienation When work does not have enough potential to satisfy people's needs, the resulting conditions are the basis for psychological separation between the employee and his/her job position, interpreted as job alienation (Banai et al., 2004: 377). Emotional exhaustion Historically, most emotional exhaustion research is based on Maslach's (1982) and Maslach and Jackson's (1986) three-part conceptualization of burnout. In this model, burnout consists of three interrelated parts: emotional exhaustion, depersonalization, and reduction of personal achievement. Emotional exhaustion is one of the three components of job burnout (Wright & Cropanzano, 1998: 486-487). Job boredom Boredom is a socially devalued emotion. This unpleasant feeling can be the basis of a situation where a person blames himself/herself for the created conditions (Mael & Jex, 2015: 132). Counterproductive work behaviors A broad conceptualization of employees' job performance includes behaviors beyond what is required in the official job description. Such behaviors are called extra-role behaviors and include both positive and negative behaviors. Counterproductive work behaviors are negative organizational extra-role behaviors that violate organizational norms (Pletzer, 2021: 1,Bennett & Robinson, 2000: 349,Schreurs et al., 2020,2). Methodology This research is applied in terms of purpose and descriptive survey regarding the data collection method. The present study's statistical population is the West Azerbaijan Gas Company employees. A questionnaire was used to collect research data. With a simple random sampling method, 221 correct questionnaires were received. Structural equation modeling was used for Data analysis and research hypothesis testing. Results The results show that the significance level of all research variables is more than 0. 05,therefore, the null hypothesis that the variables are standard is confirmed. Investigating the divergent validity of the questionnaire was done with confirmatory factor analysis. The average value of the extracted variance of all research variables is above 0. 5,therefore, the convergent validity of the questionnaire is also confirmed. The significance test was used to check the hypotheses after confirming the proposed research model using Goodness of fit indices. This study found that employees’ perception of their overqualification significantly affects their counterproductive work behaviors. In addition, a positive association was found between perceived overqualification and counterproductive work behaviors via job boredom, job alienation, and emotional exhaustion. Discussion The results of the present study were similar to previous studies. The research results of Kim et al. (2021) showed that perceived overqualification was positively related to job boredom. Additionally, job boredom was a mediator between perceived overqualification and counterproductive work behaviors. Studies by Yu et al. (2021) showed that perceived overqualification has a positive relationship with job boredom and emotional exhaustion. In general, when people compare their current job situation with the position they think they deserve to have and feel that their job is not what they expected, this perceived gap creates a sense of deprivation. According to the relative deprivation theory, the feeling of being deprived results from an unfavorable comparison of reality with expectations (Yu et al., 2021: 60-69). This feeling can decrease motivation and increase job dissatisfaction and job boredom. In the next step, low emotional stability in work engagement aggravates the effect of emotional exhaustion on counterproductive work behaviors and ultimately leads to dissatisfaction with the organization (Chen et al., 2020: 37,Reijseger et al., 2013: 508). Conclusion One of the key issues to solving the problem of perceived overqualification and its consequences in the workplace is the wellbeing of employees. Employees should be allowed to face challenging working conditions in order to maintain their well-being. Creating constructive conditions for using the experiences of employees' perceived overqualification in the workplace is another point that needs the practitioners' attention. In addition, collectivist orientations are an effective moderator to reduce the impact of perceived overqualification. It is suggested that the practitioners focus on the institutionalization of collectivist culture to reduce the problems of the overqualification phenomenon. Another important point is educational inflation, which requires the fundamental attention of educational system officials.