Abstract: Objective To study the curative effect of internal fixation of intra-articular calcaneal fracture with plastic titanic alloy plates. Methods Twenty-eight cases of intra-articular calcaneal fracture were treated with internal fixation using plastic titanic alloy plates and screws through an extensible"L"-shared lateral approach.The posterior subtalar facet was reduced anatomically. Bohler’s and Gissance’s angle were reserved. Results All cases were followed up for 11-36 months and evaluated using the Maryland Foot Score System.The function of hind feet were excellent in 20,good in 8 and fair in 4 feet,respectively.The total excellent and good rate was 87.5%. Conclusion Satisfactory results can be achieved in treatment of intra-articular calcaneal fracture with internal fixation using plastic titanic alloy plates.