Diabetes Mellitus (DM) is a metabolic disease with hyperglycemia because of abnormalities of insulin. Prevalence of DM increases from year to year and is predicted by 2030 to increase to 366 million. One of the efforts that can be done to reduce the high number of patients with DM is a group of calories counseling to solve the diet problems so that they can control the blood glucose levels. The purpose of this study was to determine the effect of calorie counseling on increasing knowledge, attitude, and behavior of patient dietary with DM in Semanding, Puskesmas Dau, Kabupaten Malang. The method used in this research is quasi-experimental design, a non-randomized pre-posttest control group. The samples were selected into two groups, that is the "intervention" group (n=20), and the "control" group (n=20). The method of data analysis used an independent t-test. The results showed a relationship between the calories counseling and the knowledge of dietary with p-value = 0,000, a relationship between the calories counseling and the behavior of dietary with p-value = 0,152. The research concluded that calories counseling increases the knowledge and behavior of dietary to patient DM in Semanding Dau, Kabupaten Malang.