The invention provides an axial bearing, a motor and an air conditioner. The axial bearing comprises two axial bearing stators (1) which are arranged opposite to each other as well as a thrust disk (2) which is arranged between the two axial bearing stators (1); each axial bearing stator (1) is provided with a gas supply channel (3); and a gas outlet of the gas supply channel (3) faces towards thethrust disk (2). According to the axial bearing provided by the invention, the problem that the thrust disk collides to the axial bearing stators to cause damage due to that protective graphite cannot effectively protect the axial bearing can be effectively solved.