The utility model relates to a stiff aphid autofilter machine belongs to tobacco disease and pest control field, stiff aphid autofilter machine by frame, motor support, micro motor, eccentric cover, oscillating joint board, supporting legs, miniaturely blow fan, stiff aphid funnel, sieve barrel cover, screening barrel, discharge tank, miniature blowing selects that fan, collecting vat, fan housing, stiff aphid are collected box, electropneumatic controller constitutes, the utility model discloses the application is little to be vibrated and the combination of gentle breeze technique, detaches ghost and tiny debris in the stiff aphid through vibration and selection by winnowing, purifies stiff aphid quality, and the distribution before can realizing automatically puting in stiff aphid seedling is filtered, improves production efficiency.