The　hardness　and　wear　resistance　of　the　electrodeposited　amorphous　Fe-Ni-P　alloy　coating　at　various　heat　treatment　temperatures　are　studied.　The　microstructure　and　friction　surface　of　the　coating　are　examined,　and　the　strengthening　mechanism　and　wear　mechanism　are　described.　The　hardness　and　wear　resistance　increase　with　the　increase　of　heat　treatment　temperature　and　reach　the　maximum　values　at　400°C　and　then　decrease.　When　the　coating　is　heated　over　400°C,　the　hardness　and　wear　resistance　would　increase　with　the　increase　of　its　phosphorus　content.