The　conventional　preparation　method　of　Al-based　amorphous　alloy　consists　of　the　rapid　solidification　and　mechanical　alloying　technique.　The　rapid　solidification　with　convenience　and　rapid　cooling　rate　can　produce　an　amorphous　phase　and　achieve　successive　production.　The　mechanical　alloying　has　simple　equipments,　convenient　operation,　easy　industrialization,　relatively　wide　range　of　alloy　composition,　and　other　advantages.　But　both　methods　can　only　prepare　amorphous　ribbons,　flakes　or　powders,　and　the　production　period　is　long　and　the　production　efficiency　is　low.　Thermal　spraying　technique　is　a　kind　of　rising　preparation　technique,　which　can　produce　amorphous　coating,　and　achieve　integration　of　materials　preparation　and　forming　to　reduce　the　production　period.　So　it　has　been　the　key　preparation　technique　of　industrialized　application.