A system for safely supplying a liquid (eg, an irritating chemical) is provided. The liquid supply system includes a base 16 on which a container 20 containing a liquid is placed, a hollow needle 58 having a spire portion 59, a first needle position where the spire portion is separated from the container, and a spire portion that penetrates the wall of the container. A first moving mechanism 50 for moving the needle to and from the second needle position, a hollow tube 79 having an outer diameter smaller than the inner diameter of the lumen of the needle, and the first tube position and the second needle separated from the container A second moving mechanism 70 is provided for moving the tube between the second tube position penetrating the lumen of the needle at the position and entering the inside of the container.液体（例えば、刺激性の薬液）を安全に供給するシステムを提供する。液体供給システムは、液体を収容した容器２０が載せられる基台１６、尖塔部５９を有する中空の針５８、尖塔部が容器から離間した第１針位置と尖塔部が容器の壁を貫通している第２針位置との間で針を移動させる第１移動機構５０、針の内腔の内径よりも小さな外径を有する中空の管７９と、容器から離間した第１管位置と第２針位置にある針の内腔を貫通して容器の内部に侵入した第２管位置との間で管を移動させる第２移動機構７０を有する。
