A target material capturing filter is described herein. The target material capturing filter may include an inlet through which a fluid enters; an outlet through which at least a portion of the fluid is discharged; a first flow path that is connected to the inlet; a second flow path that is connected to the outlet; and a filter unit that is disposed between the first flow path and the second flow path and captures the target material by letting drop at least a portion of the fluid that flows through the first flow path.