In the past fifty years, Taiwan life insurance industry has changed from conservative to open and from single to multiple marketing channels. Now, Taiwan life insurance market has been a mature market, but still not a saturated market. In this highly competitive environment without a significant product difference, if life insurers can provide high quality customer service and professional team to their customers, life insurers can maintain their original customers satisfaction and loyalty, then further develop potential customers. In this study, we select one sample life insurance company to analyze how they improve the traditional sales channel. This target life insurance company provides a new marketing strategy, "I-MU regional develop marketing" (marketing based on zip-code district), to combine with innovation and diversity practices. This new marketing strategy may enhance the business performance, beyond the expectations of its customers and create a brilliant era for this target life insurance company.