A kind of dredging and oxygen supply equipment, draw unit, an inlet unit and a water guide unit comprising one. Draw unit include a dip-tube, one be connected in what dip-tube draw screw rod and one controllably driving draw the power source of screw rod, dip-tube have under a liquid level to protrude into the extraneous aqueous of what one drawing end and an opposite what draws the open end at end. Inlet unit includes that element is found in a support drawn end and set what water inlet bottom of the tube at least water inlet pipe of an input hole and majority for being connected with what dip-tube. Screw rod is drawn by power source drive to interlock dip-tube synchronous rotary, so that extraneous aqueous flows into water inlet pipe via input hole, and then discharged by the end of drawing of dip-tube towards open end movement, then through water guide unit, what dredging operation thereby can be not only used, can also increase the oxygen content in water with what.一種清淤及供氧設備，包含一汲取單元、一進水單元，及一導水單元。汲取單元包括一汲取管、一連設於汲取管中之汲取螺桿，及一受控制地驅動汲取螺桿之動力源，汲取管具有一用以伸入於一外界水液的液面下之汲取端，及一相反於汲取端之開口端。進水單元包括一連設於汲取管的汲取端且具有至少一輸入孔之進水管，以及多數設於進水管底部之撐立元件。藉動力源驅動汲取螺桿以連動汲取管同步旋轉，以使外界水液經由輸入孔流入進水管中，進而由汲取管之汲取端朝開口端移動，再透過導水單元排放，藉此不但能用於清淤作業，也能用於增加水中的含氧量。
