An improved vibrating massager is disclosed. The massager includes an inner shell, at least one vibrating unit, at least one power-supply unit, a control circuit board, at least two conductive strips having a first conductive strip and a second conductive strip, a switch, a first outer shell, a waterproof o-ring, and a second outer shell. Particularly the switch and the control circuit board are integrated and a program for memorizing previously-used vibrating frequency is installed in the control circuit board. As a result, the previously-used vibrating frequency can be re-applied in next use without extensive control (e.g., number of times for pushing button is decreased).