Aiming at characteristics of bridge structure is large and complicated

there are large amounts of and kinds of sensors

and damage in a variety of forms

wireless sensor networks（ WSNs） and mobile agent technologies are adopted. Real bridge structure is taken as research object

adopting CC2530 as the core of the WSNs nodes to collect relevant bridge structure data. Using mobility of mobile agent

migrate and access to network nodes to complete collection and processing of the nodes data. Using Zig Bee wireless communication protocol to transfer data to gateway node for processing. Through GPRS wireless communication mode

send eventual data to monitoring center to determine health status of bridge. The results show that the system meets design requirements

and monitoring data is reliable

it has application and popularization value.