More and more enterprises utilize the online communities to interact with consumers，with the purpose of generating more sales aside from providing services to consumers. However，how to deliver marketing and service content in online communities is a challenge. Based on the theory of marketing and service ambidexterity，we propose the concept of balance dimension and combination dimension of content ambidexterity， and explore how balance dimension and combination dimension affect sales performance and consumer satisfaction. Based on natural language processing technology，we recognize the conversation and coded customer satisfaction from the online community，and find that the balance dimension has a positive effect on consumer satisfaction and sales performance. However，the combined dimension has an inverted U-shape effect on sales performance and consumer satisfaction. In addition，the skill level of employees has a significant moderating effect on the effect of content ambidexterity strategy. The findings may help enterprises understand the dual relationship between marketing content and service content in online communities and guide them to optimize the content delivery strategy.