The utility model provides an it digs steel of hole stake and protects a section of thick bamboo to be applied to manual work, is including protecting a section of thick bamboo (1), protects a section of thick bamboo (1) and goes up the shaping and have a plurality of constant head tanks (11), and constant head tank (11) comprise to arc recess (111) of protecting a section of thick bamboo (1) inboard sunken twice, protect the annular stirrup of welded fastening (2) on (1) inner wall between the twice arc recess (111), the welding has a plurality of nut (3) on protecting the inner wall on a section of thick bamboo (1) top, and spiro union is gone up in nut (3) has rings (4). It goes up shaping muscle groove at the section of thick bamboo that protects of the current steel sheet system of rolling up, fixes the stirrup simultaneously on protecting an inner wall, has strengthened the intensity that the steel protected a resistance to deformation.