Whether drainage asphalt mixture(DA mixture) is applicable to heavy traffic load has been a main topic of much discussion. The rutting tests of DA mixture and SMA mixture under standard condition and heavy traffic load condition were carried out by using asphalt pavement analyzer(APA). Indicator of rutting depth is used to evaluate rutting resistance of DA mixture and its sensitivity to load level, load numbers and temperature. The test results show that the rutting resistance of DA mixture could be improved effectively by using high viscosity asphalt, appropriate gradation and certain compaction. The sensitivity of rutting resistance of DA mixture to load level, load numbers and temperature is lower than that of SMA mixture.