This　paper　documents　the　speed　reduction　impacts　of　intersection　control　beacon　of　the　rural　road　intersection　of　Xu　Song　Road　and　Xin　Tong　road　in　Tong　Zhou　District,　Beijing.　To　determine　the　effect　of　intersection　control　beacon　on　stopping　behaviors　of　drivers,　video　capture　method　was　used　to　collect　valid　samples.　After　data　collection　for　four　times,　there　were　400　valid　samples.　Lagrange＇s　interpolation　and　Analyses　of　Variance　(ANOVA)　methods　were　used　to　research　the　changing　of　vehicle　speed　with　and　without　intersection　control　beacon.　The　result　showed　that　for　that　intersection　with　intersection　control　beacon,　the　speed　of　vehicles　decreased　12.87%,　moreover,　the　distance　of　vehicle　beginning　to　decrease　was　13　meters　from　intersection　stopping　bar　(DSB),　speed　changed　significantly　about　1.5　meters　away　from　the　stopping　bar　with　significant　level　(P)　is　0.03,　lower　than　criterion　significant　level　(α=　0.05),　So　DSB　has　a　significant　effect　on　speed.　However,　without　intersection　control　beacon,　the　speed　only　cut　down　by　2.90%,　and　speed　has　no　significant　change.　To　sum　up,　intersection　control　beacon　has　a　significant　effect　on　speed　changing.　Key　words-Rural　Road;　Traffic　Control　Devices;　Intersection　Control　Beacon　©　2011　IEEE.