We　study　the　quantum　phase　transition　and　entanglement　in　the　Jaynes–Cummings　model　with　squeezed　light,　utilize　a　special　transformation　method　to　obtain　the　analytical　ground　state　of　the　model　within　the　near-resonance　regime,　and　numerically　verify　the　validity　of　the　analytical　ground　state.　It　is　found　that　the　ground　state　exhibits　a　first-order　quantum　phase　transition　at　the　critical　point　linearly　induced　by　squeezed　light,　and　the　ground　state　entanglement　reaches　its　maximum　when　the　qubit-field　coupling　strength　is　large　enough　at　the　critical　point.