The paper analyzes the competitive intelligence value of enterprise IWOM（Internet Word of Mouth）and concludes IWOMIS one of the main sources of enter prise competitive intelligence . It also analyzes the three kinds of timely monitoring methods and tools for IMOW，and they are Google Alert、RSS technology and IWOM monitoring software . It proposes key figures tactics，social media tactics and information tactics to realize effective guiding and controlling of IWOM . In order to promote enterprise to monitor and control IWOM efficiently，the paper constructs the IWOM monitoring and controlling model for enterprise .