A　one-pot　transition-metal-free　selective　iodoarylation　of　pyrazoles　with　aryliodine　diacetates　has　been　developed.　The　reaction　proceeds　via　the　generation　of　NH-pyrazole-iodonium　salts　in　situ,　followed　by　sequential　phen/K2CO3-mediated　intermolecular　arylation.　When　the　iodonium　ylide　was　directly　used　as　substrate,　the　difunctionalization　products　could　be　prepared　in　high　yield　under　base-　and　metal-free　conditions.　This　transformation　provides　an　efficient　route　to　high-value　multisubstituted　pyrazole　derivatives　from　simple　and　readily　available　substrates.