The present disclosure relates to a beauty treatment device comprising: an upper portion; a lower portion; a handle formed on the lower portion; a hollow hole formed in the upper portion; a conductive holder configured in the hollow hole; and a beauty treatment water generator detachably attachable to the conductive holder, wherein at least a part of the beauty treatment water generator is configured as a conductor so that, when the beauty treatment water generator is inserted into the conductive holder and beauty treatment water flowing out of the beauty treatment water generator contacts skin, micro-currents, which are generated in the beauty treatment device and flow through a beauty treatment water, can flow through human skin after passing through the conductive holder and the conductor.