The invention discloses a wearable human body multidimensional tumbling prevention and detection device and a detection method thereof. The wearable human body multidimensional tumbling prevention and detection device comprises a wearing body, a microprocessor arranged on the wearing body, a positioning module, an altitude sensor module, an ultrasound module, a movement sensing module, a sign detection module, a warning module and a display module, wherein the positioning module, the altitude sensor module, the ultrasound module, the movement sensing module, the sign detection module, the warning module and the display module are respectively electrically connected with the microprocessor. According to the wearable human body multidimensional tumbling prevention and detection device, the travelling safety of a wearer can be effectively and comprehensively predicted and prevented.