A method of preparing a textured coated electrode wire, characterized in that it comprises the following steps: step, preparing a metal zinc plating layer on the surface of a copper-zinc alloy electrode wire by electroplating / hot dip plating; step, pre-drawing the galvanized electrode wire blank by a cold drawing technique; step, forming a coated electrode wire having a multilayer structure of Zn/β-Cu γ-Cu/α-Cu by a discontinuous heat treatment technique; step, preparing a micro-textured electrode wire by cold drawing, and obtaining a plated electrode wire material having a regular texture by controlling the process of the electroplating / the hot dip plating, the discontinuous heat treatment technique, and the cold drawing technique, wherein the obtained plated electrode wire has regular strip cracks on its surface; step comprises selecting the pre-drawed electrode wire blank obtained in step as a starting material, placing into vacuum/inert heating furnace, and diffusion treating the pre-drawed electrode wire blank by two-stage or multi-stage temperature gradient, and the pre-drawed electrode wire blank with Zn/β-Cu γ-Cu/α-Cu multilayer structure is formed by adjusting parameters of the processing temperature and the processing time; wherein step further comprises selecting a vacuum and inert atmosphere furnace and discontinuous thermal diffusion treating the pre-drawed electrode wire blank obtained in step, wherein a bell-type vacuum heat treatment furnace is used during the thermal diffusion treatment, and the treatment process is thermal diffusion treatment at 150 °C to 200 °C and 300 °C to 400 °C two-stage temperature for 80-500 minutes. step, preparing a metal zinc plating layer on the surface of a copper-zinc alloy electrode wire by electroplating / hot dip plating; step, pre-drawing the galvanized electrode wire blank by a cold drawing technique; step, forming a coated electrode wire having a multilayer structure of Zn/β-Cu γ-Cu/α-Cu by a discontinuous heat treatment technique; step, preparing a micro-textured electrode wire by cold drawing, and obtaining a plated electrode wire material having a regular texture by controlling the process of the electroplating / the hot dip plating, the discontinuous heat treatment technique, and the cold drawing technique, wherein the obtained plated electrode wire has regular strip cracks on its surface; step comprises selecting the pre-drawed electrode wire blank obtained in step as a starting material, placing into vacuum/inert heating furnace, and diffusion treating the pre-drawed electrode wire blank by two-stage or multi-stage temperature gradient, and the pre-drawed electrode wire blank with Zn/β-Cu γ-Cu/α-Cu multilayer structure is formed by adjusting parameters of the processing temperature and the processing time; wherein step further comprises selecting a vacuum and inert atmosphere furnace and discontinuous thermal diffusion treating the pre-drawed electrode wire blank obtained in step, wherein a bell-type vacuum heat treatment furnace is used during the thermal diffusion treatment, and the treatment process is thermal diffusion treatment at 150 °C to 200 °C and 300 °C to 400 °C two-stage temperature for 80-500 minutes.