Objective To investigate the influences of insulin glargine administering by needle-free on glucose and insulin dosage in patients with type 2 diabetes mellitus(T2 DM). Methods 50 patients with T2 DM who had a poor effect of oral medicine combined with insulin glargine treatment were recruited. The patients were randomly divided into needle and needle-free group(n = 25).The blood glucose level and insulin doses were observed. Results In the needle group,there was no significant difference in fasting blood g...