PROBLEM TO BE SOLVED: To provide an aerosol spray hairdressing agent which can reduce smokiness at the time of injection.SOLUTION: The problem is solved by an aerosol spray hairdressing agent which contains a hairdressing agent undiluted solution and propellants, and the hairdressing agent undiluted solution is injected in a mist form. The hairdressing agent undiluted solution contains at least, (a) hydroxypropyl cellulose with a viscosity of 150 mPa s or more, in the solution with 2 mass% concentration, (b) alcohol which is divalent to tetravalent with a carbon number 2-8, and (c) ethanol. Preferably, the content of the (b) alcohol which is divalent to tetravalent with a carbon number 2-8 in the hairdressing agent undiluted solution is 3-40 mass%.COPYRIGHT: (C)2016,JPO&INPIT