Eddie Howe's late header gave Bournemouth a deserved point. Steve Foley put the Cherries ahead after 35 minutes, but they then lost Marcus Browning when he was sent off after a clash with Tommy Fraser.
Dean Hammond headed Brighton level after 53 minutes and Alex Revell added a second seven minutes later when he fired home Fraser's pass.
But Howe scored with 16 minutes left and James Hayter missed a late chance to give Bournemouth victory.
Brighton: Kuipers, Reid (El-Abd 88), Mayo, Lynch, Santos, Frutos, Hammond, Cox, Fraser (Loft 90), Hart (Robinson 71), Revell.
Subs Not Used: Sullivan, Butters.
Goals: Hammond 53, Revell 60.
Bournemouth: Stewart, Young, Purches, Browning, Broadhurst, Cooper, Best (Fletcher 65), Foley (Hollands 70), Hayter, Howe (Gowling 87), Cummings.
Subs Not Used: Moss, Cooke.
Sent Off: Browning (45).
Booked: Howe.
Goals: Foley 35, Howe 74.
Att: 5,958
Ref: K Hill (Hertfordshire).