Abstract: Objective: To explore and analyze the feasibility and curative effect of strip crowns in restoration of multi-surface caries decay in mandibular deciduous incisor and deciduous canine, and to compare the method of direct resin filling method. Methods: Fifty patients with 132 multi-surface caries of mandibular deciduous incisor and deciduous canine teeth were divided into strip crowns group (63 cases) and composite resin group (69 cases). Restorations were re-examined at 6-month and 12-month after therapy. Results: After 6 months, the difference in the repair success rate between strip crowns group and composite resin group was not statistical different. After 12 months, the repair success rate and complications in the strip crowns group were obviously better than those in the composite resin group(P<0.05). Conclusion: The strip crowns can be used to repair the multi-surface caries decay of mandibular deciduous incisor and deciduous canine, which is worthy of clinical application.