The invention discloses a portable nasal cavity cleaning device for pediatric nursing. The nasal cavity cleaning device comprises a device body, a controller, a built-in power supply, a syringe, a micro motor, a liquid guide tube and a cleaning head. Through coordinated linkage of the syringe, the micro motor and the liquid guide tube, the micro motor drives the liquid guide tube to rotate, so thecleaning head can clean the nasal cavity through bristles, cleaning liquid can be safely and reliably injected into the nasal cavity through the syringe for further cleaning, and thus the effect andreliability of nasal cavity nursing are greatly improved; besides, a heating jacket is arranged in the device body, so the cleaning liquid in the syringe can be kept at a suitable use temperature, therejection reaction of the nasal cavity is relieved, and the use experience is improved; moreover, the nasal cavity cleaning device is compact in structure, small in size, suitable for carrying, low in use environment requirement and convenient to use for home life or medical institutions.