A system for measuring a dynamic behavior of a structure, comprising: a reference meter installed at a fixed position and configured to provide GPS reference information received via a reference GPS module, a plurality of response meters, installed at a plurality of positions of the structure respectively, each of which comprises an acceleration sensor and a response GPS module, and is configured to synchronize acceleration information obtained through the acceleration sensor with a plurality of real-time kinematic displacement data measured through the response GPS module using the GPS reference information to transmit the synchronized acceleration information and the plurality of RTK displacement data, and an operation processor configured to calculate structure response information using the transmitted acceleration information and the plurality of RTK displacement data, wherein the GPS reference information includes reference position data and reference time data, and the plurality of RTK displacement data include dynamic displacement data corresponding to X-axis, Y-axis, and Z-axis and displacement time data, and wherein the response meter acquires the acceleration information by measuring an X-axis component, a Y-axis component, and a Z-axis component of an acceleration of the structure through the acceleration sensor, and synchronizes acceleration time data corresponding to the acceleration information with the displacement time data at multi-sampling frequencies to generate the acceleration information and the plurality of RTK displacement data into a packet, the acceleration information including acceleration data corresponding to an X-axis, a Y-axis, and a Z-axis, and angular displacement data corresponding to an XY plane, a YZ plane, and a ZX plane. a reference meter installed at a fixed position and configured to provide GPS reference information received via a reference GPS module, a plurality of response meters, installed at a plurality of positions of the structure respectively, each of which comprises an acceleration sensor and a response GPS module, and is configured to synchronize acceleration information obtained through the acceleration sensor with a plurality of real-time kinematic displacement data measured through the response GPS module using the GPS reference information to transmit the synchronized acceleration information and the plurality of RTK displacement data, and an operation processor configured to calculate structure response information using the transmitted acceleration information and the plurality of RTK displacement data, wherein the GPS reference information includes reference position data and reference time data, and the plurality of RTK displacement data include dynamic displacement data corresponding to X-axis, Y-axis, and Z-axis and displacement time data, and wherein the response meter acquires the acceleration information by measuring an X-axis component, a Y-axis component, and a Z-axis component of an acceleration of the structure through the acceleration sensor, and synchronizes acceleration time data corresponding to the acceleration information with the displacement time data at multi-sampling frequencies to generate the acceleration information and the plurality of RTK displacement data into a packet, the acceleration information including acceleration data corresponding to an X-axis, a Y-axis, and a Z-axis, and angular displacement data corresponding to an XY plane, a YZ plane, and a ZX plane.