A sheet-like medium stacking and bundling device, comprising: a sheet-like medium stacking mechanism, adapted to stack and tidy sheet-like mediums conveyed one by one; a bundling mechanism, adapted to bundle a whole stack of stacked and tidied sheet-like mediums; and a clamping and conveying mechanism, adapted to clamp and convey the whole stack of sheet-like mediums stacked and tidied by the sheet-like medium stacking mechanism to the bundling mechanism to be bundled, and clamp a bundled sheet-like mediums bundle out of the bundling mechanism; wherein the bundling mechanism comprises a paper tape loop-forming mechanism, a heat and pressure bonding mechanism and a paper tape cutting-off mechanism; the paper tape loop-forming mechanism comprises a track formed by a guiding groove for guiding a paper tape, and a head and a tail of the guiding groove are connected to form a conveying loop; the guiding groove comprises a bottom portion, an opening corresponding to the bottom portion, and two corresponding groove side walls extending between the bottom portion and the opening, and the opening faces an inner side of the conveying loop; a paper tape inserting port is provided at the bottom portion of the guiding groove and at least one paper tape conveying wheel is provided in the bottom portion of the guiding groove; the heat and pressure bonding mechanism and the paper tape cutting-off mechanism are located at the bottom portion of the guiding groove close to the paper tape inserting port; and a guiding member which is elastic and parallel to the bottom portion of the guiding groove, is provided at an opening end of the groove side walls, the guiding member and an inner surface of the track form a semi-closed passage, and the guiding member comprises a bending portion bending towards an inside of the track. a sheet-like medium stacking mechanism, adapted to stack and tidy sheet-like mediums conveyed one by one; a bundling mechanism, adapted to bundle a whole stack of stacked and tidied sheet-like mediums; and a clamping and conveying mechanism, adapted to clamp and convey the whole stack of sheet-like mediums stacked and tidied by the sheet-like medium stacking mechanism to the bundling mechanism to be bundled, and clamp a bundled sheet-like mediums bundle out of the bundling mechanism; wherein the bundling mechanism comprises a paper tape loop-forming mechanism, a heat and pressure bonding mechanism and a paper tape cutting-off mechanism; the paper tape loop-forming mechanism comprises a track formed by a guiding groove for guiding a paper tape, and a head and a tail of the guiding groove are connected to form a conveying loop; the guiding groove comprises a bottom portion, an opening corresponding to the bottom portion, and two corresponding groove side walls extending between the bottom portion and the opening, and the opening faces an inner side of the conveying loop; a paper tape inserting port is provided at the bottom portion of the guiding groove and at least one paper tape conveying wheel is provided in the bottom portion of the guiding groove; the heat and pressure bonding mechanism and the paper tape cutting-off mechanism are located at the bottom portion of the guiding groove close to the paper tape inserting port; and a guiding member which is elastic and parallel to the bottom portion of the guiding groove, is provided at an opening end of the groove side walls, the guiding member and an inner surface of the track form a semi-closed passage, and the guiding member comprises a bending portion bending towards an inside of the track.