MgO　nanowires　are　synthesized　at　a　lower　temperature　(T　=　600　degrees　C)　by　pulsed　liquid　injection　metal-organic　chemical　vapor　deposition　with　Mg(C-11　H-19　O-2)(2)　(magnesium　bis　(2,　2,　6,　6-tetramethyl-3,　5-heptanedionate))　as　precursor.　The　MgO　nanowires　grow　along　the　[001]　direction　with　gold　nanoparticles　on　the　tips,　which　leads　to　the　vapor-liquid-solid　growth　mechanism.　The　growth　mode　of　nanowires　(vertical　growth　to　the　substrate　or　parallel　growth　to　the　substrate)　can　be　controlled　by　adjusting　the　injection　period　or　the　injection　mass/period.