The invention discloses a technology for gluing a stator punching sheet by adopting KH-225 glue. The technology comprises the following steps of S1, cleaning: cleaning the punching sheet to remove oil stains on the surface of the punching sheet, S2, gluing: gluing each punching sheet by adopting a heating gluing process, wherein the gluing temperature is kept at 65+/-5 DEG C, S3, clamping: gluing the punching sheets, stacking the punching sheets on a tool, and ensuring that the thickness of a glue layer between the punching sheets is greater than or equal to 5 microns after mounting, S4, curing: preserving heat at 80+/-5 DEG C for 6+/-0.1 h or preserving heat at 120+/-5 DEG C for 3+/-0.1 h, and S5, cooling: cooling along with the furnace for 12+/-2 hours, and then dismounting the tool and taking out a pressed finished product; on the basis of the gluing technology, gluing parameters and a clamping tool have originality, by adopting the technology, the gluing temperature is strictly controlled to enable the punching sheet to have better fluidity, gluing on the surface of the punching sheet is facilitated, the thickness of a glue layer is limited between 5 mum and 15 mum through the tool, what can be ensured is that the shearing strength is larger than or equal to 15 MPa, and cohesive stress and black lines caused by the too thick glue layer can be avoided.