Patients with Diabetes Mellitus (DM) are risked with Leg Sensitivity decreasing. Patient’s habits or behavior such as less maintaining of their cleanliness and not wearing footwear or slippers will make the risk of them infect their feet increase. If the conditions of further diabetics are not handled properly, it can increase the act of foot amputations. This research objective is to analyze the effect of Diabetics Foot Exercise against Leg Sensitivity Monofilament Test to patients with Diabetes Mellitus in Posyandu Lansia Endorsono Surabaya. This research is using pre-experiment designs methods and the design used is one group pretest-posttest with 54 elderly respondents from Posyandu Lansia Endorsono Wonokusumo Village, Semampir sub-district, Surabaya as sample and using Simple Random Sampling as the sampling technique. Leg sensitivity measuring is collected from Monofilament Test observation. The Data are analyzed by SPSS 16.0 program and using Mc. Nemar obtained p value = 0,008 for the right foot and p value = 0,003 for the left foot α=0,05 (p< α). It means that there is no effect between Diabetic Foot Exercise with the Leg Sensitivity Monofilament test (H0 is approved, H1 is disapproved). The implication of the research is that Diabetic Foot Exercise cannot be affecting Leg Sensitivity Monofilament Sensitivity Test. As the result patients with diabetes mellitus need to increase their daily activity and do the Diabetic Foot Exercise 5-7 times per-day