The invention relates to a deep-vein thrombus-prevention massaging instrument. The deep-vein thrombus-prevention massaging instrument is characterized by comprising a host, a multi-cavity airbag and agas connecting pipe, wherein a control circuit, an input module, an output module, a power supply module, an air pump and an electromagnetic valve group are arranged in the host; the input module, the output module, the power supply module, the air pump and the electromagnetic valve group are connected with the control circuit; and the host is provided with an indication lamp, a touch display device, an air guiding pipe socket, an external power supply plug and a power supply switch; and the air pump is connected with the multi-cavity inflation airbag through the electromagnetic valve group,and each airbag is connected with an electromagnetic valve. A gas pressure sensor is mounted on the control circuit, and a pressure value collected by the gas pressure sensor is corrected, so that theaccurate maintenance problem of a pressure numerical value is solved; working modes are selected according to the requirements, so that the requests of different patients on the treatment modes are solved; by utilizing a touch control manner, the operation is relatively simple and convenient; by utilizing a tearing design, the multi-cavity airbags can be conveniently fixed to limbs of a patient;and the deep-vein thrombus-prevention massaging instrument is small in volume, convenient to carry and low in cost.