The invention discloses a corner connecting construction method of ash concrete hollow battens. The method is characterized by comprising steps as follows: after main structure construction, cleaningup a pre-installation part, performing positioned paying off on a hollow batten partition according to design drawing, performing layout design on the partition, densely filling end hollow holes at the corner parts of the hollow battens with concrete, installing a partition board, after filling concrete is cured, drilling steel bar implanting holes in the corner position of the partition board, ensuring that the steel bar implanting holes penetrate through two connected hollow battens, finally, implanting steel bars into the embedded steel bar holes with steel bar implanting glue, and conducting drawing detection after the implanted steel bars are cured to complete construction. The method has the advantages that construction is convenient to operate, the connecting strength of the ash concrete hollow battens in the connecting plate position can be improved, the anti-seismic performance can be improved, the safety performance and stability of buildings can be improved and the like.