The present invention discloses a small-sized food chopper for chopping up foodstuffs, characterized in that it comprises: an outer case including a lower casing removably connected with an upper casing and a button mounted on the upper casing; a blade connection holder installed inside said outer case, said blade connection holder can move axially up and down in the outer case; a plurality of blades installed on the lower end of the blade connection holder; a reset spring sheathed on the blade connection holder which restores the blade connection holder axially up; a means which makes the blade connection holder rotate a predetermined angle circumferentially each time the blade connection holder operates axially; said button is configured such that it can slide up and down axially, and said button acts on the upper end of the blade connection holder to make the blade connection holder move axially downwardly.