Enterprise 2.0 has become popular in firms. Many Enterprise 2.0 researchers and practitioners have recognized the importance of benefits and costs in using Enterprise 2.0 by individuals. However, their effects on adoption intention in enterprise contexts are not discussed. To investigate this issue, we proposed a model to understand the intention to adopt Enterprise 2.0. Three factors are identified based on value-based adoption model (VAM), namely perceived benefits, perceived costs, and perceived value. An empirical survey was conducted to collect data. 500 samples were collected within 18 days. Of which 150 was valid. This yielded a response rate of 30%. Partial Least Squares (PLS) was used to analyze the data and verify the model. The result showed that perceived value not only played an important role in mediating the relationship between perceived benefits and costs, and adoption intention but it also exerted a significant effect on intention to adopt Enterprise 2.0. Moreover, we identified major factors that may affect perceived value. We find that both perceived benefits and perceived costs have significant impacts on perceived value, and cause intention to adopt Enterprise 2.0. Implications of such finding are discussed.