Pipette head support

The utility model provides a pipette head support which comprises a supporting frame body, a pore plate located on the supporting frame body and a pressing piece located on the pore plate, a positioning hole is formed in the pore plate, a magnetic piece is arranged on the supporting frame body, and magnetic force which attracts each other is formed between the magnetic piece and the pressing piece. And the pressing piece can press the pore plate on the support frame body under the action of the magnetic force. When the pore plate needs to be replaced, the pressing piece can be moved away manually, namely, the pore plate can be taken down conveniently, so that after a new pore plate is placed on the supporting frame body, the pressing piece is placed on the pore plate again, and magnetic force is applied to the pressing piece through the magnetic piece, so that the pressing piece can press the pore plate on the supporting frame body, and the pore plate is fixed; and the replacement of the pore plate is complet