The invention provides a driving device of an electromagnetic
relay. The driving device comprises an iron core, a coil, a guide rod and a coil framework, wherein the coil is wound on the coil framework, the coil framework is internally provided with the iron core, the coil framework is internally sleeved with a sleeve, a plurality of permanent magnets are fixedly arranged between the sleeve and the coil framework, the iron core is arranged in the sleeve, the
axial length of the sleeve is larger than the length of the iron core, the guide rod penetrates through two sides of the coil framework along an axial direction of the sleeve, and the guide rod and the iron core are fixedly connected. The iron core can be magnetized by the permanent magnets by utilizing homopolar opposite arrangement of the permanent magnets, a
magnetic field can be generated in the coil when current flows through the coil, the magnetized iron core can be driven to do
reciprocating motion along the axial direction of the coil framework, the iron core and the guide rod can restore to original status without reset devices such as a spring, the structure of the whole device is simplified, the
stroke displacement of the iron core driving the guide rod to move is large, the requirement on long
stroke is realized, and the flux leakage of the driving device of the electromagnetic
relay, which is provided by the invention, is greatly reduced.