The invention provides a large-stroke sealed-armature energy-saving electromagnetic valve that is of conical-face armature structure which provides both increased pull-in initial output force and increased pull-in side retention; a magnetically-permeable ring structure added herein helps increase release initial output force and decrease release side retention, thereby decreasing pull-in ampere turns and improving pull-in sensitivity; a dual-coil series structure is used herein such that during pull-in, a coil below can function to counteract flux of a lower permanent magnet, and a coil abovecan function to increase the flux of an upper permanent magnet, while during release, the coil above can function to counteract the flux of the upper permanent magnet, and the coil below can functionto increase the flux of the lower permanent magnet. The defects of a traditional electromagnetic valve, such as short stroke, monostable retention and high power consumption, are overcome. The large-stroke sealed-armature energy-saving electromagnetic valve has the advantages of small size, high output force, high retention, dual stable states, permanent magnet circuit retention, good energy efficiency and the like.