The invention provides an anchor rod stress monitor based on ZigBee technology and an application method thereof. The anchor rod stress monitor comprises a vibration wire type anchor rod acquisition device, a ZigBee wireless transmission module and a monitor, wherein the ZigBee wireless transmission module is fixedly arranged on the vibration wire type anchor rod acquisition device and connected with a vibration wire type sensor on the vibration wire type anchor rod acquisition device and used for transmitting in a wireless manner the stress data acquired by the vibration wire type sensor. With the design of extremely low power consumption, ZigBee can be totally battery-powered, and one battery can theoretically serve for more than 2 years; the indoor action range of ZigBee generally can reach 30-50m and even 400m in an outdoor open field. The problems of existing anchor rod stress-strain acquisition way that much consumption of labor, material and financial resources is needed and the connection wire is easily damaged and consequently monitoring failure is caused are solved. The invention belongs to the field of mine safety monitoring.