The general purpose of this study; the aim is to determine whether the optimism and pessimism anachronism of employees have an impact on Achilles syndrome. Within the scope of this general purpose, it was determined as the aim of the research to determine the perceptions of the participants about their optimism and pessimism, their perception of Achilles syndrome and its sub-components, and finally whether there is an interaction between these variables. Method: Since it was aimed to determine whether there is an effect between the two variables, a model designed in the form of an interactive model was designed. In this framework, the relationships and interactions between optimism and pessimism dimensions and Achilles syndrome and its sub-dimensions are discussed separately. The sample group of the study consists of 356 employees working in the banking sector in Balıkesir province. In order to collect data within the scope of the research, Dember et al. Conray (2001) Achilles Syndrome Scale was used along with the Optimism / Pessimism Tool (OPI- Optimism / Pessimism Instrument) scale developed by (1989). Analyzes were also carried out using the data analysis program SPSS 21.0. Results: According to the findings obtained, it was concluded that there was a low and moderate negative relationship between the optimism dimension and the sub-dimensions of Achilles syndrome (r = -, 309 to r = -, 489, p <0.00). It was concluded that there was a significant positive and low-level relationship between the pessimism dimension and the sub-dimensions of Achilles syndrome (r =, 360 to r =, 562, p <0.00). In addition, perceptions of optimism explain the variance towards perception of Achilles syndrome by 39% and negatively affect [(β = -, 229), (p <0.05)] (R2:, 039; p:, 000); It was concluded that pessimism perceptions explain the variance towards perception of Achilles syndrome by 44% and positively affect [(β =, 340), (p <0.05)] (R2:, 044; p:, 000).