Microfluidic　technology　has　exhibited　remarkable　potential　and　significance　in　the　precise　preparation　of　multifunctional　nanomaterials.　Thanks　to　its　small　reaction　volume　and　superior　hydrodynamic　control,　this　technology　has　emerged　as　an　essential　tool　for　synthesizing　multifunctional　nanomaterials　with　precisely　tunable　microstructures　and　morphologies.　This　paper　reviews　the　latest　advancements　in　the　controllable　synthesis　of　metal　nano-electrocatalysts　utilizing　microfluidic　technology.　Firstly,　it　systematically　elucidates　the　fundamental　principles　of　microfluidic　synthesis　technology　and　its　distinctive　parameter　control　strategies.　Subsequently,　it　delves　deeply　into　the　mechanism　of　reaction　enhancement　in　the　synthesis　process　of　metal　nanoparticles　in　the　microfluidic　environment.　Through　the　analysis　of　specific　cases,　the　extensive　application　prospects　and　distinctive　advantages　of　the　microfluidic　system　in　the　preparation　of　nano-electrocatalysts　have　been　further　elucidated.　Finally,　it　summarizes　and　looks　forward　to　the　challenges　and　future　development　directions　that　microfluidic　technology　faces　in　the　synthesis　of　nano-electrocatalysts.　This　review　aims　to　provide　valuable　insights　into　the　application　of　microfluidic　synthesis　technology　in　the　morphology　design　and　technological　innovation　of　electrocatalysts.