A beauty needle application device comprises a holding assembly and a plurality of needle seats. The holding assembly comprises a holding unit and a seat-connecting unit connected to the holding unit, in which the seat-connecting unit comprises at least two connection portions. Each needle seat comprises a handle-connection portion for mounting on the seat-connecting unit and a needle-connection portion for connecting the needle head.一種美容針施用裝置,包含有一握組,具有一握持單元,一接座單元接於該握持單元;該握組的接座單元具有至少兩接設部;多個針座,各針座具有一接把部供裝設於該各接座單元,以及一接針部供接設針頭。(1)‧‧‧美容針施用裝置(10)‧‧‧握組(30)‧‧‧針座(50)‧‧‧蓋件