The invention discloses a crew cabin temperature simulation method and system. The method comprises the following steps: extracting temperature data of a vehicle type similar to the vehicle type to besimulated, wherein the temperature data comprises temperature data of wall surfaces of a plurality of regions detected in different regions and spots and temperature data of air outlets of air conditioners; and according to the temperature data of the wall surfaces of the plurality of regions and the temperature of the air outlets of the air conditioners of the vehicle similar to the vehicle typeto be simulated, performing temperature simulation on the plurality of regions and the air outlets of air conditioners of the vehicle to be simulated in a one-to-one correspondence manner. The methodcalls the temperature data of the vehicle type similar to the vehicle type to be simulated and simulates temperature distribution and temperature change in a crew cabin in a manner of corresponding to regions of the vehicle to be simulated one by one. The simulation method which directly gives wall surface temperature and temperature change avoids simulation of complex heat transfer and setting of complex specific heat capacity. Meanwhile, the simulation method disclosed by the invention can use single software analysis, avoids multi-software coupling analysis and is simple and practical.