In　order　to　investigate　the　influence　of　axial　compression　ratio　on　the　paticipation　extent　of　slab　reinforcement　in　longitudinal　beam　overstrength,　a　series　of　RC　frame　structures　with　different　axial　compression　ratios　were　simulated　in　ABAQUS.　The　actualization　of　Strong　Column　Weak　Beam　philosophy　was　analyzed　in　RC　frame　structures　with　different　axial　compression　ratios　and　at　different　connections.　The　requirement　of　the　appearance　of　plastic　hinge　at　beam　end　was　discussed.　It　indicates　that　axial　compression　ratio　can　greatly　influence　the　participation　extent　of　slab　reinforcement　and　it　is　easier　for　the　appearance　of　plastic　hinges　at　beam　end　in　RC　frame　structures　with　low　axial　compression　ratio　than　that　with　high　axial　compression　ratio.　Moreover,　it　is　easier　for　the　appearance　of　plastic　hinges　at　beam　end　at　interior　connections　than　that　at　exterior　connections　in　the　same　structure.　In　order　to　actualize　the　target　of　No　Collapsing　in　the　Strong　Earthquake　more　effectively,　it　is　recommended　that　the　actual　capacity　of　beam　end　with　the　slab　participation　in　consideration　should　be　still　smaller　than　the　actual　capacity　of　column　end　at　the　same　connection.