The study focused on the improvisation competencies possessed by junior secondary school social studies teachers in Rivers State. Ex-post facto research design was used for the study. The population was made up of all the social studies teachers in the 23 Local Government Area of Rivers State. The sample size of the study was one hundred and thirty five (135) social studies teachers selected through simple random sampling techniques (74 male and 61 female). The instrument for data collection was a questionnaire. The reliability of the instrument was determine through test-retest techniques and a reliability coefficient of 0.86 was attained, in analyzing the data collected, a statistical package of social science (S.P.S.S) for window version 15.0 was employed. Mean and standard deviation were used to answer the research questions while independent t-test and one way analysis of variance (ANOVA) was used to test the hypothesis at 0.05 level of significance. The findings of the study show that teacher’s qualification, gender an years of experience influences social teacher’s improvisation competencies. On the strength of the above findings, it was recommended among others that qualified teachers be employed to teach the subject, improvisation be made part of teacher education programme while government and stakeholders in education should create conducive atmosphere for social studies teachers.