Abstract:〔Abstract〕Objective To observe and study the efficacy of alprostadil combined with pancreatic kininogenase for injection in the treatment of diabetic foot ulcer (DFU). Methods A total of 122 DFU patients admitted to Luohe Hospital of Traditional Chinese Medicine from May 2014 to May 2019 were randomly divided into combination group (alprostadil combined with pancreatic kinkinase for injection) and single drug group (alprostadil), with 61 cases in each group. Both groups received routine treatment and continued the medication regimen for 4 weeks. The therapeutic effect and adverse reactions were compared between the two groups. Results The total effective rate in combination group was 91.80%, which was significantly higher than 78.69% in the single drug group, the difference was statistically significant (P < 0.05). After 4 weeks of treatment, the levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), hypersensitive C-reactive protein (hs-CRP), fasting plasma glucose (FPG) and microalbuminuria (m-Alb) in combination group were lower than those in the single drug group, the maximum systolic blood flow velocity of dorsal foot artery, anklebrachial index (ABI) and conduction velocity of common peroneal nerve, superficial peroneal nerve and tibial nerve of affected limb were higher than those in the single drug group, the differences were all statistically significant (P < 0.05). There was no significant difference in the incidence of adverse reactions between the two groups (P > 0.05). Conclusion Alprostadil combined with pancreatic kininogenase for injection can achieve an ideal clinical efficacy in treating DFU, and it can accelerate the blood flow velocity of dorsal pedal artery and relieve the inflammatory response.