The invention discloses a double-stroke crank slide block execution pushing hand mechanism. The double-stroke crank slide block execution pushing hand mechanism comprises a slide block (3), a connecting rod (4), a crank (5), a planetary gear (6), a sun wheel (8) and a planet carrier (9), wherein an execution pushing hand (7) is arranged on the slide block (3); one end of the connecting rod (4) is movably connected with the slide block (3), and the other end of the connecting rod (4) is movably connected with the crank (5); the crank (5) and the planetary gear (6) are connected, and are fixedly arranged at one end of the planet carrier (9); the sun wheel (8) is movably connected to the other end of the planet carrier (9). The double-stroke crank slide block execution pushing hand mechanism is characterized in that the planet carrier (9) rotates to drive the planetary gear (6) to rotate by taking the sun wheel (8) as a supporting point, so that the crank (5) is driven to rotate to drive the slide block (3) to move leftwards and rightwards, thereby driving the execution pushing hand (7) to work. According to the double-stroke crank slide block execution pushing hand mechanism, the two steps of secondary feeding and pushing-boxing are finished through one action, so that the production efficiency is increased greatly, and large-scale production and popularization are facilitated.