The invention discloses an IP address acquisition method and device based on OSGI. The IP address acquisition method based on OSGI in the invention is suitable for the process that a server monitors arequester device in real time and comprises the following steps: under an open service gateway protocol OSGI framework, the server integrates the spring MVC in the OSGI framework; the server receivesa service request sent by the requester device, wherein the service request comprises a network protocol IP address of the requester device; the server stores the service request into a designated memory according to the class inherited from the spring MVC; and the server extracts and obtains the IP address from the designated memory by calling a pre-generated IP address obtaining interface. According to the method and device, the IP address of the requester device is obtained; and high-efficiency and reasonable monitoring of the behaviors of the requester and flow control can be carried outin time according to the IP address of the requester device.