In order to improve the heat dissipation capability, the utility model provides a spaced arrangement type cooling system of an engine. The system comprises an inter-cooling system and a water cooling system; and an intercooler and a radiator are arranged at an interval. By adopting the technical scheme, on the one hand, a cold air channel is additionally formed between the intercooler and the radiator, and on the other hand, the size of the intercooler is not required to be matched with that of the section of an arranged bunker body; therefore, the intercooler can be designed according to the practical specification, namely, the intercooler is enabled to work the most effectively, thereby improving the heat dissipation efficiency of the radiator and the economical efficiency of the engine; and besides, the radiator and the intercooler can be better maintained.