The utility model relates to a six oar unmanned aerial vehicle of four -axis. Including the organism and set up the foot rest in the organism below, the below of organism still is provided with battery, medical kit, battery and medical kit set up from top to bottom, electric connection between battery and the organism, its characterized in that, be provided with the fixed axle that is used for placing the rotatory wing on the organism, the fixed axle symmetry sets up on the lateral wall of organism, the fixed axle sets up folding axle and the symmetrical minor axis that sets up both ends around the organism in the organism left and right sides including the symmetry, battery and medical kit pass through removable body is disposed under the organism, removable body is used for the battery compartment including the battery parcel on the fixing base, is used for connecting the connecting seat of medical kit including fixing at the fixing base of organism below and sliding to set up, the battery compartment suit is in the fixing base, the connecting seat suit is outside the fixing base. The utility model relates to a rationally, convenient, the easy operation of simple structure, processing, be fit for using widely on a large scale.