Resumo: Introdução: O diabetes mellitus tipo 2 (DM2) é um distúrbio crônico com morbimortalidade que limita a qualidade de vida devido às complicações. Objetivo: Avaliar, por meio de questionários, os aspectos físicos, emocionais e sociais que envolvem a doença e a qualidade de vida de pacientes com DM tipo 2 de uma unidade básica de saúde (UBS) de Bauru (SP The impact of diabetes mellitus on the quality of life of patients of Primary Health CareAbstract: Introduction: Diabetes Mellitus type 2 (DM2) is a chronic disorder with morbidity and mortality, which limits the quality of life due to complications. Objective: To evaluate through questionnaires the physical, emotional and social issues surrounding the disease and quality of life of patients with type 2 DM of a Basic Health Unit (BHU) of Bauru/SP. Method: The participants (patients type 2 DM, over 40 years, both genders, registered in the BHU Vila Cardia, Bauru-SP) answered the B-PAID questionnaire (DM impact perspective on quality of life and emotional aspects); DQOL (satisfaction, impact, social/ vocational preoccupation related to DM) and QAD (self-care). The data were presented descriptively, it was correlated with the time of DM with scores of B-PAID and DQOL questionnaires by Spearman correlation (p <0.05). Results: The sample consisted of 59 individuals, aged 63.5 ± 10 years, weight 79 ± 13 kg, BMI 29 ± 4 kg/m 2 . The questionnaire B-PAID indicated score of 19 (11-48) points evidencing low emotional suffering, the DQOL indicated that the most frequent preoccupation were the complications of DM and the QAD found lower adherence in "sweet ingest" and higher in "ingesting the indicated number of drugs". There was a positive correlation of DM time with the score of B-PAID, the shorter the duration of disease, less emotional suffering. Conclusion: It is expected that this study will contribute to provide information about the patients and direct health interventions, aiming to improve the quality of life and self-care of type 2 DM.