A screen printing method includes performing a destaticizing action that removes static electricity with which a screen mask is charged, through a mask support member, which is positioned on a lateral side of a circuit board, before bringing the circuit board into contact with a lower surface of the screen mask, by bringing the conductive mask support member into contact with a lower surface of the screen mask as a result of raising the mask support member. The method includes subsequently performing screen printing by bringing the circuit board into contact with the lower surface of the screen mask as a result of raising the circuit board.