Based on the technology acceptance model (TAM), the empirical analysis of the adoption of mobile instant message by college students have been carried out. Effects of five factors, perceived usefulness, perceived ease of use, perceived security, peer influence, and perceived service costs have been examined in the adoption of mobile instant message. Perceived ease of use is the most significant
... [Show full abstract] effect in the Behavior Intention of the adoption. Service costs do not affect the adoption of mobile instant message.