The research was conducted in order to examine the quality of life of patients treated with an insulin pump in relation to the quality of life of patients treated with multiple daily insulin injections. Out of 104 patients participating in the research, 52 were treated with an insulin pump and the other 52 were treated with multiple daily insulin injections. The data was collected using a specially designed questionnaire taking into consideration socio-demographic facts and the patients’ medical condition as well as through the Quality of life BREF instrument (WHOQOL – BREF) and the Beck Anxiety and Depression Inventory (BAI and BDI). The data was statistically analysed in the SPSS Program. The analysed data shows that patients with type 1 diabetes who are being treated with an insulin pump visit their diabetologists more often than patients who are being treated with multiple daily insulin injections. Also, the number of patients suffering from ketoacidosis and using carbohydrate counting techniques on a regular basis was higher in the group being treated with an insulin pump. Diabetes type 1 patients using daily insulin injections have been using this type of therapy longer than insulin pump patients. Also, the level of HbA1c is higher in patients who are being treated with multiple daily insulin injections and they have stated to experience hypoglycaemia more often. Both groups control their glycaemia levels 3 to 5 times per day before starting therapy and both experience complications in terms of unstable diabetes. The majority considers the insulin pump to have more benefits than conventional methods for treating diabetes. In addition, both groups believe that their hyperglycaemia is caused by stress, the cold and the flu. Finally, both groups stated that they do not feel any pain during the application of the infusion set and insulin inserted by pen and that they do not notice any infiltrates caused by this application. The research found the quality of life of patients treated with an insulin pump to be better compared to the quality of life of patients treated with multiple daily insulin injections. The research also showed that there is not any statistically significant difference in the anxiety or depression levels in diabetes 1 patients in both groups.