A method for sharing sensor data among mobile terminals, comprising: building by a mobile terminal a network for sharing sensor data in advance; and when any mobile terminal in the network for sharing sensor data needs sensor data not owned by itself, sending (Step 201) a request message by the mobile terminal to another mobile terminal owning the sensor data needed by the mobile terminal to access said sensor data, according to routing table information and a sensor resource list which are currently stored in the mobile terminal itself; according to the request message received, returning (Step 202), by the other mobile terminal which receives the request message, the sensor data needed to the mobile terminal which sends the request message, characterized in that the mobile terminal initiating an access request is taken as a host mobile terminal while the mobile terminal receiving the access request is taken as a slave mobile terminal; and wherein the building by a mobile terminal of a network for sharing sensor further comprises the steps of: sending (Step 101) an access request by the host mobile terminal to all slave mobile terminals, and returning (Step 102) access response messages by the slave mobile terminals to the host mobile terminal after receiving the access request; building (Step 103) a network for sharing sensor data by the host mobile terminal according to the access response messages returned by the slave mobile terminals and generating routing table information, and meanwhile broadcasting the information to all slave mobile terminals in the network built; sending (Step 104), by the host mobile terminal, to all slave mobile terminals a command to report all sensor resource information; after receiving the command, reporting (Step 105) all sensor resource information of themselves by the slave mobile terminals to the host mobile terminal; according to sensor resource information of the host mobile terminal itself and received sensor resource information reported by all slave mobile terminals, generating (Step 106) a sensor resource list and broadcasting the sensor resource list to all slave mobile terminals by the host mobile terminal. sending (Step 101) an access request by the host mobile terminal to all slave mobile terminals, and returning (Step 102) access response messages by the slave mobile terminals to the host mobile terminal after receiving the access request; building (Step 103) a network for sharing sensor data by the host mobile terminal according to the access response messages returned by the slave mobile terminals and generating routing table information, and meanwhile broadcasting the information to all slave mobile terminals in the network built; sending (Step 104), by the host mobile terminal, to all slave mobile terminals a command to report all sensor resource information; after receiving the command, reporting (Step 105) all sensor resource information of themselves by the slave mobile terminals to the host mobile terminal; according to sensor resource information of the host mobile terminal itself and received sensor resource information reported by all slave mobile terminals, generating (Step 106) a sensor resource list and broadcasting the sensor resource list to all slave mobile terminals by the host mobile terminal.