A sealant bottle for tire repair of gas pressure type which comprises a bottle body configured for containing sealant. The bottle body is provided with a sealant outlet and an air inlet, wherein a bottle cap is disposed at the sealant outlet and the air inlet is connected with a straight pipe assembly. An air-inlet end of the straight pipe assembly is connected with an air throat which is further provided with an explosion proof element. A sealant guiding pipe disposed within the bottle cap is comprised of a first pipe section arranging along the axial direction of the bottle body and a second pipe section perpendicular to the first pipe section. A second step is disposed between inlets of the first pipe section and the second pipe section, and a rubber plug is further disposed between the inlet of the first pipe section and the second step.