Abstract:Identifying causes of knowledge workers’ complaints at workplace is essential for enterprises’ effective complaints management. This paper conducted exploratory and confirmatory factors analysis based on two surveys and exposited the seven dimensions of knowledge workers’ complaints causes. The seven dimensions are interpersonal relations factors (including relations with managers and with colleagues), job contents, management standardization, occupational developments, working conditions, work load and collaborations at workplace. Among them, interpersonal relation factors explained the maximum variance; and occupational developments, work load, job contents and management standardization are relative high-score causes for knowledge workers’ complaints. In contrast to causes of Western workers, occupational development, job contents, management standardization and collaborations at workplace are Chinese knowledge workers’ unique causes for complaining. Finally, implications for complaints management of knowledge workers were discussed.