The present invention relates to a multi-needle assembly for skin surgery, which comprises a guide plate (111) having a plurality of guide holes (111a) formed therethrough and a slide space (112) and a suction space And a needle block 120 having a plurality of needles 121 inserted into the slide space 112 of the guide housing 110 so as to reciprocate forward and backward and penetrate through the guide hole 111a, And a control tube 130 coupled to the rear end of the needle block 120 to receive a drug from the syringe 2 and to open and close the injection passage 131 to control drug injection, The injection path 131 is formed in the tube 130 in the longitudinal direction and the tapered portion 132 is formed at the intermediate portion of the injection path 131 and the adjustment ball 133 is inserted into the tapered portion 132 of the injection path 131. [ And the elastic force is applied to the spring 134, One or more adjustment knobs 135 are formed so as to protrude from the knob 135 and the bending piece 136 and the pressing piece 137 are formed on the adjustment knob 135. When the guide knob 135 is advanced in conjunction with the needle block 120, The adjusting knob 135 is engaged with the bending piece 136 and the pressing piece 137 pushes the tapered portion 132 of the injection path 131 from the left and right sides to bend the spring 134, The upper and lower sides of the tapered portion 132 are opened by mechanically moving the adjustment ball 133 to the rear side so that the injection path is opened mechanically so that the drug can be smoothly injected into the body smoothly. So as to prevent the drug from being ejected due to the residual pressure, so that a proper amount of drug can be accurately injected into the body, and waste of expensive drugs can be prevented.본 발명은 피부시술용 멀티니들 조립체에 관한 것으로, 다수개의 가이드공(111a)을 천공한 가이드플레이트(111)를 형성하되 가이드플레이트(111)의 전후로 슬라이드공간(112)과 흡입공간(113)을 형성시키는 가이드하우징(110)과, 상기 가이드하우징(110)의 슬라이드공간(112)에 삽입하여 전후로 왕복운동하도록 하되 가이드공(111a)
