Solar rolled glass,with one micro-structure surface and another roughness surface,can cause diffuse refraction of the focused laser spot,and this phenomenon restricts the application of laser manufacturing.In this study,laser cutting of solar rolled glass with a thickness of 2.5 mm was successfully achieved with the help of dimethicone to ensure laser focusing.Dimethicone was coated on the top surface of the rolled glass processing zone,and a Z bottom-up multilayer increment with the X-Y spiral line was applied to control the cutting path.Different viscosity values of dimethicone were considered.Results showed that surface quality increased as the viscosity increased until a certain threshold was reached;afterward,the surface quality decreased or directly caused the cutting to fail.The minimum surface roughness (3.26μm) of the processed surface (chipping: Width≤ 113.64μm,area 215199 μm2) was obtained when the dimethicone viscosity and laser pulse frequency were 1000 mm2/s and 43 kHz (power 25.4 W),respectively.The micro-defects on the processed surface were few,and the edge chipping width and depth of the laser processed surface were small.