Shanghai Jiujia Information Technology Co., Ltd. (CaiHong) was founded in April 2015 by entrepreneur Junyuan Huang. The company has transitioned from an e-commerce platform to a software-as-a-service (SaaS) platform to better compete in China’s Legal Service Plus Internet (LSPI) industry. While exploring some key concepts about CaiHong, such as market positioning, business model innovation, SaaS, and growth strategies, several questions are raised about the company’s growth in the LSPI industry and the company’s application of SaaS. First, what factors facilitated CaiHong’s transition from the business-to-consumer (B2C) market to the business-to-business (B2B) market? Second, what is CaiHong’s approach to business model innovation based on the SaaS platform? Third, how can it build on the success of the SaaS model through continuous innovation and further disruption of the LSPI industry?