Provided are an oil seal installation structure for washing machines and a washing machine, the oil seal installation structure for washing machines includes at least three oil seals provided on a main shaft of the washing machine at intervals, the oil seals are disposed between a rear portion of an inner tub of the washing machine and a first bearing disposed on the main shaft. Seal lips of the oil seals disposed at both ends face a sealing region of the main shaft, and the seal lip of at least one oil seal disposed in the middle faces away from the sealing region of the main shaft.
