Abstract Background and Aims Kidney transplantation is the most cardioprotective method of renal replacement therapy and it has a positive effect on the psycho-emotional state of patients. However, kidney transplant recipients have a higher cardiovascular risk and a higher prevalence of anxiety and depression than people in the general population. The aim of the study was assessment of anxiety levels and the quality of life of kidney transplant recipients preceding adverse cardiovascular events. Method The study included 154 kidney transplant recipients. 54 (35.1%) of them had adverse cardiovascular events (acute coronary syndrome, complicated hypertensive crisis or rhythm disturbance) for three years of observation. The comparison group was 100 (64.9%) recipients without cardiovascular complications during the observation period. The study groups were comparable by age, gender, graft function and traditional cardiovascular risk factors. Results The average level of situational anxiety of kidney transplant recipients was 39 ± 7, the level of personal anxiety—43 ± 8. The structure was dominated by recipients with moderate personal anxiety—55.2% (n = 85) and moderate situational anxiety—66.9% (n = 103). However, the proportion of persons with high personal anxiety was quite high—40.9% (n = 63). The structure of anxiety levels had no significant differences depending on subsequent cardiovascular complications. Nevertheless, kidney transplantation recipients with adverse cardiovascular events had higher previous level of situational anxiety than recipients without cardiovascular events—41 ± 7 versus 38 ± 7, p < 0.05. During the study kidney transplant recipients were asked to rate their quality of life on a scale of 1 to 10. Recipients with subsequent adverse cardiovascular events had a lower subjective quality of life than recipients without cardiovascular complications—7 (6-8) versus 8 (7-8), p < 0.01. Conclusion Based on the study it was found that recipients with adverse cardiovascular events in the late postoperative period are characterized by a higher level of situational anxiety and a lower quality of life before these complications.