A triple-hole cantilever beam strain gauge dynamic electronic small unmanned vehicle scale, comprising a resistive strain sensor system, a voltage signal amplification circuit, an A/D data collection and conversion circuit, a controller, a resistance strain gauge measurement circuit, a display, an information input device and a scale health status monitoring system. The resistive strain sensor system uses resistance strain gauges as sensitive elements of a weighing sensor, a cantilever beam of the resistance strain gauges utilises a triple-hole beam structure, the plate-shaped beam is provided with two square holes, an elliptical hole is added between the two square holes, two plastic plates are used for adhesion, and the resistance strain gauges are respectively adhered to upper ends and lower ends of the adhesion bodies, so that the four strain gauges are located in opposite stress areas in two groups.
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