Abstract:b>Objective To compare the clinical efficacy of divergent type extracorporeal shock wave and local corticosteroid （CS） injection in the treatment of chronic plantar fasciitis. Methods Eighty patients with RPF treated in Xi'an Red Cross Hospital from March 2018 to May 2020 were were selected for retrospective study. Forty patients treated with CS local injection in the plantar area were selected as the blocking group, and 40 patients treated with shock wave in the plantar area and ipsilateral triceps were selected as the shock wave group. The patient satisfaction, visual analogue scale(VAS), Maryland foot function scores and other indicators were compared between two groups. Results Compared with those before treatment,VAS and Maryland scores were significantly improved at 1, 3 and 6 months of treatment in two groups (P<0.05). VAS and Maryland scores in blocking group were better than those in shock wave group at 1 month of treatment, but they in shock wave group were statistically superior to those in blocking group at 6 months of treatment (P<0.05). The VAS and Maryland scores of shock wave group at each time point after treatment were gradually improved compared with those before treatment. Except for the comparison between June and March after treatment, there were significant differences in other time points (P<0.05). In blocking group, VAS and Maryland scores were worse at 6 months of treatment than those at 1 month of treatment(P<0.05). The patients' satisfaction in shock wave group was significantly better than that in blocking group at 6 months of treatment (P<0.05). Conclusion Two therapy methods are effective for chronic plantar fasciitis. Local CS injection can relieve pain and improves function in a short term, but the long-term clinical effect of extracorporeal divergent shock wave is significant, and the patient satisfaction is high.