The invention belongs to the field of cooling systems, and discloses an independent cooling system of an engineering vehicle. The independent cooling system comprises a water radiator, an intercooler,an oil radiator and a fan unit used for supplying air to the water radiator, the intercooler and the oil radiator. The intercooler and the oil radiator are arranged behind the water radiator in an up-down displacement manner. The fan unit is arranged in front of the water radiator. The water radiator is internally provided with a first core body, the intercooler is internally provided with a second core body, and the oil radiator is internally provided with a third core body. The first core body, the second core body and the third core body are each composed of a plurality of radiating tubeswhich are arranged in parallel, first cooling fins arranged among the radiating tubes and second cooling fins arranged in the radiating tubes, wherein the first cooling fins and the second cooling fins are in square waveform shapes. The independent cooling system of the engineering vehicle is good in radiating effect and occupies limited space.