A shower head with water-powered vibrating function wherein a diverting member is disposed in the water diversion chamber which is operable by a diverting member actuating means between a normal shower position and a massage shower position. At the normal shower position the diverting member diverts water flow received from the water diversion chamber inlet to leave the water diversion chamber through the first water diversion chamber outlet for exiting the shower head through a first water outlet and at the massage shower position, the diverting member diverts water flow received from the water diversion chamber inlet to leave the water diversion chamber through the second water diversion chamber outlet for entering the turbine chamber for rotating the turbine and thereafter leaving the turbine chamber to exit the shower head through a second water outlet.