In 2020，the global audio book market has grown by 25%，and more than 30% of the people have the habit of listening to the media. The rapid growth of audio book content consumption has become a prominent feature of the online audio industry. These businesses based on commercial audio platforms are connected to book copyright owners，audio book producers，intermediary platforms，and listening users. Starting with comprehensive online audio platforms such as Himalayas，Litchi，Dragonfly，etc.，vertical listening platforms such as Lazy Listening Books，and comprehensive online reading platforms such as QQ Reading，this article aims to conduct case observations and discussions with the help of existing virtual content marketing analysis framework. This article tries to explore the current development model and business expansion strategy of audio platforms，which provide audio reading services in China from multiple dimensions such as content production，copyright management，and user strategies.