The invention discloses a quick rescuing and fire fighting truck which comprises a truck body, a rotation table, a first hydraulic cylinder, a second hydraulic cylinder, a stretchable arm, a supporting arm, a speed regulating motor, a driving wheel, a driven wheel, a tensioning wheel, a chain, a conveying plate and a high-altitude rescuing platform. The rotation table and the supporting arm are arranged above the truck body, the rotation table is provided with the stretchable arm connected with the first hydraulic cylinder, the stretchable arm is connected with one end of the supporting arm, the other end of the supporting arm is connected with the second hydraulic cylinder, a driving wheel electrically connected with the speed regulating motor is arranged at the bottom end of the stretchable arm, and a driven wheel is arranged at the top end of the stretchable arm; and the driving wheel, the driven wheel and the tensioning wheel are provided with the matched chain, the chain is provided with a movably-connected conveying plate, and the high-altitude rescuing platform is arranged at the topmost end of the stretchable arm. The quick rescuing and fire fighting truck is reasonable in design, not prone to fall, simple in operation, controllable in descending speed and free of secondary injuries, trapped persons can be conveyed in a circulated manner, the rescuing rate is greatly increased, the conveying direction is far away from a fire catching point, and the safety performance is high.