In　this　paper,　the　characteristic,　electrochemistry　principle　and　technological　controls　of　immersion　plating　depositions　were　reviewed,　which　are　keen　surface　technology　in　electronic　field.　The　applications　of　the　immersion　plating　depositions　as　the　finishing　procedures　for　printed　circuit　board　(PCB)　were　shed　light　upon　for　immersion　tin,　immersion　gold,　immersion　palladium　and　immersion　silver.　The　developing　trend　and　existing　problems　in　the　immersion　plating　were　also　put　forward.