Diabetes mellitus represents a serious public health problem presenting an increasing world incidence and impacts as achronic condition in the life of patients, their families and society. As a condition sensible to the work of primary health assistance, itsearly detection and a multicriteria follow-up by health professionals have a close relationship to quality of life and higher survival rates.This study aims to characterize patients with diabetes and to analyze their follow-up in Pedregal II Basic Family Health Unit of Cuiaba/MT, having as parameters some guidelines from the Notebook of Basic Assistance – Diabetes mellitus of the Health Ministry. The study isobservatory, exploratory and descriptive, and uses medical histories and Sishiperdia records. The population consisted of 45 subjects withdiabetes that were followed-up in the Unit from January to December 2009. In the qualification of the collected data one evidenced that98% were older than 45 years; 71% were women; and 82% were literate. Parameters such as abdominal circumference, and ocular fundusand feet exams were carried through in less than 12% of subjects. Lab exams as fast glycemia and glycated hemoglobin were uncommonrequests. Guidelines about smoking, physical activity and diet were not evaluated in consultations nor duly registered. Evaluation of medicalregistries and Sishiperdia records showed a very deficient follow-up procedure for diabetes patients in the studied population, pointingto the necessity of examining the effectiveness of registers and permanent education of health professionals responsible for assistance.