The utility model provides an infusion apparatus, comprising a bottle penetrating needle, a dropping bottle, a regulator and a vein needle, all of which are connected by an infusion tube, wherein the infusion tube comprises an inner layer in contact with liquid medicine and an outer layer in no contact with the liquid medicine; the inner layer is made of a medical material not reacting with the liquid medicine, while the outer layer is made of a light shielding material; the dropping bottle is made of a light shielding medical material not reacting with the liquid medicine; the regulator comprises a liquid inlet barrel with a liquid inflow hole and a liquid outlet barrel with a liquid outflow hole; the liquid inlet barrel is graduated or provided with an indication arrow; the liquid outlet barrel is graduated or provided with an indication arrow; and the liquid inlet barrel and the liquid outlet barrel are capable of relatively rotating each other. The infusion apparatus is capable of shielding light, thereby preventing the liquid medicine from photochemical reaction and guaranteeing the treatment safety and reliability of the liquid medicine. The part in contact with the liquid medicine is made of the medical material not reacting with the liquid material, so that new pollution to the liquid medicine is avoided; and simultaneously, the regulator is provided with the granulation of scale and the indication arrow, thereby accurately controlling the dropping speed and improving the safety of infusion.