The invention discloses a fully automatic double-sided screen-printing machine. The fully automatic double-sided screen-printing machine comprises an alignment station, a screen-printing station and a plate-turning station, wherein the plate-turning station is connected with a material-discharging conveying track; the screen-printing machine also comprises a first material conveying platform which is positioned between the alignment station and the screen-printing station and is in horizontal and linear displacement, and a second material conveying platform which is positioned between the screen-printing station and the plate-turning station and is in horizontal and linear displacement; the horizontal and linear displacements of the first material conveying platform and the second material conveying platform are synchronous; and the first material conveying platform and the second material conveying platform can lift respectively to be switched between a material conveying height and a no-load height. The fully automatic double-sided screen-printing machine is creative in structure, convenient to control, and stable in printing quality and productivity; and in addition, the screen-printing stations are reduced, so that the overall size is greatly reduced, the manufacturing cost is lowered, and the demand on the occupied space is lowered, so that the fully automatic double-sided screen-printing machine is particularly suitable for production places with relatively small spaces.