Method for forming hole for detecting flue gas exhausted out of chimney

The invention belongs to the technical field of chimney flue gas detection, and discloses a method for forming a hole for chimney exhaust flue gas detection, which comprises the following steps of: S1, determining a theoretical elevation datum in a chimney design drawing, and taking the theoretical elevation datum as a reference datum of a theoretical height in a height direction, selecting an initial theoretical position coordinate on the chimney design drawing, wherein the theoretical height of the initial theoretical position coordinate and the theoretical chimney inner diameter both meet a first preset standard; s2, positioning an actual elevation reference on the chimney according to the theoretical elevation reference, and determining an initial actual position coordinate according to the actual elevation reference and the theoretical height of the initial theoretical position coordinate; s301, the initial actual position coordinates are measured, and the actual height and the actual chimney inner diame