Recently,　the　echo　state　networks　(ESNs)　have　been　widely　studied.　In　an　ESN,　the　input　weights　and　internal　weights　of　reservoir　are　fixed　after　initialization,　only　the　output　weight　matrix　needs　to　be　optimized.　To　calculate　the　output　weights　of　ESN,　the　particle　swarm　optimization　algorithm　(PSO)　with　hybrid　topology　is　proposed.　The　structure　of　the　proposed　PSO　is　mixed　with　regular　network　with　strong　exploration　ability　and　scale-free　network　with　good　exploration　ability.　Simulation　results　show　that　the　proposed　ESN　has　good　prediction　performance　than　the　traditional　ESN.　©　2019　IEEE.