Straw crushing apparatus

The utility model provides a straw crushing apparatus, capable of realizing decreasing of part number and making work easy. The structure is as follows: through a first, a second and a third rotators (47, 46, 49) being encircled by an annular rotator (50), an external part of an encircling path of the annular rotator (50) is contacted with a peripheral part of the first rotator (47); and an internal part of the encircling path of the annular rotator (50) is contacted with peripheral parts of the second and third rotators (46, 49), and thereby a first and a second rotation axle (11,13) are driven by the annular rotator (50) to rotate in opposite directions.