This study focuses on reviewing how intensive growth strategy influences the micro health insurance performance in Kirinyaga County. The design of this study was descriptive design. Self-administered questionnaires with open and closed questions were utilized as main tool for gathering data achieving a response rate of 95%. Content and construct validity was ensured through double check and operationalization of terms. Reliability of the data was assessed and ensured utilizing Cronbach’ s alpha with a cut-off point of 0.7 achieved, the study realizing an overall reliability scale of 0.863. Analysis of variance indicated that model was acceptable at a confidence level of 95% since the P – Value was 0.000b and hence <0.05. The R – Squared of the study model was able to explain 55.6% of changes in performance of Micro Health Insurance being influenced by intensive growth strategies. The study concludes that market development and penetration are statistically significant in affecting the performance of Micro Health Insurance.