Automatic measurement device for treewalk growth

The invention provides an automatic measurement device for treewalk growth, which realizes that the real-time growth and growing status of treewalk are monitored in real time by virtue of a wireless network node remote monitoring device. The device comprises a device fixing module and a measurement module, wherein the device fixing module fixes the measurement module on a position of a trunk requiring measuring treewalk variation; the measurement module comprises a linear displacement sensor with a spring, a measuring head pulley, a steering pulley, a guide pulley, a non-elastic fine steel wire, a clamp and a connecting part of the measuring head pulley and the linear displacement sensor with the spring; the non-elastic fine steel wire passes through the steering pulley, the guide pulley and the measuring head pulley, and encloses the position requiring measuring the treewalk; two ends of the non-elastic fine steel wire are clamped by virtue of the clamp; and the treewalk growing variation is determined accor