A screen printing apparatus, comprising: a print executing part positioned between a substrate loading position and a substrate unloading position, both of which are juxtaposing in a certain direction, the print executing part being configured to perform screen printing to a substrate; one substrate support means that receives a substrate loaded from the substrate loading position, supports the substrate so that the print executing part enables to perform the printing on the substrate, and unloads the printed substrate from the substrate unloading position; and control means that drive-controls the one substrate support means, wherein a first substrate loading position and a second substrate loading position, both of which are aligned in a Y axis direction which is orthogonal to an X axis direction under the presumption that the X axis is defined as the certain direction, are defined as the substrate loading position, wherein the print executing part includes one screen mask on which two printing patterns (211, 212) are aligned in the Y axis direction, characterized in that the one substrate support means is provided movably in the Y axis direction across a first receiving position where a substrate loaded from the first substrate loading position can be received, a second receiving position where a substrate loaded from the second substrate loading position can be received, and a sending position where a substrate can be sent to the substrate unloading position, so that the substrate can be placed at the lower position of either of the two printing patterns (211, 212) of the screen mask by moving the one substrate support means in the Y axis direction, and the control means places the one substrate support means at the first receiving position or the second receiving position in order to receive substrates loaded from the first and second substrate loading positions, the control means places the one substrate support means to the print executing part so that printing is performed to the received substrates using one of the two printing patterns (211, 212) of the screen mask, and the control means places the one substrate support means at the sending position in order to send the printed substrate to the substrate unloading position. a print executing part positioned between a substrate loading position and a substrate unloading position, both of which are juxtaposing in a certain direction, the print executing part being configured to perform screen printing to a substrate; one substrate support means that receives a substrate loaded from the substrate loading position, supports the substrate so that the print executing part enables to perform the printing on the substrate, and unloads the printed substrate from the substrate unloading position; and control means that drive-controls the one substrate support means, wherein a first substrate loading position and a second substrate loading position, both of which are aligned in a Y axis direction which is orthogonal to an X axis direction under the presumption that the X axis is defined as the certain direction, are defined as the substrate loading position, wherein the print executing part includes one screen mask on which two printing patterns (211, 212) are aligned in the Y axis direction, characterized in that the one substrate support means is provided movably in the Y axis direction across a first receiving position where a substrate loaded from the first substrate loading position can be received, a second receiving position where a substrate loaded from the second substrate loading position can be received, and a sending position where a substrate can be sent to the substrate unloading position, so that the substrate can be placed at the lower position of either of the two printing patterns (211, 212) of the screen mask by moving the one substrate support means in the Y axis direction, and the control means places the one substrate support means at the first receiving position or the second receiving position in order to receive substrates loaded from the first and second substrate loading positions, the control means places the one substrate support means to the print executing part so that printing is performed to the received substrates using one of the two printing patterns (211, 212) of the screen mask, and the control means places the one substrate support means at the sending position in order to send the printed substrate to the substrate unloading position.