A crop growth information real-time monitoring node of a near-infrared crop growth information real-time monitoring and crop disaster prediction wireless system comprises a crop growth nutrition and eco-physiological information monitoring node, a crop growth form and disease, insect and grass information monitoring node and a multi-parameter crop growth soil and microclimate monitoring node. The crop growth information real-time monitoring node, a GPRS, the Internet, a data processing center, a GIS and a GPS are combined to constitute the system, and the system is used for determining the positions of abnormal information monitoring nodes and connected with a mobile phone through a GSM. Node real-time monitoring data are analyzed by applying improved near-infrared stoichiometric software and processed through a precision agriculture expert system, and meanwhile a grey system prediction model is used for predicating disasters of crops. The near-infrared crop growth information real-time monitoring and crop disaster prediction wireless system is simple in structure, convenient to operate and good in real-time performance, integrates the advantages of the near-infrared spectroscopic analysis technology and the advantages of the wireless sensor network technology, and provides basically technical support for a precision agriculture platform in an Internet-of-Things environment.