A first half brace from James Maddison and an a clever finish from Jamie Vardy was more than enough for Brendan Rodgers' impressive team.
Albion had their chances and Danny Welbeck missed a golden opportunity when the scores were locked at 0-0.
But after that, all of the attacking threat came from Leicester and Brighton really struggled to be competitive.
Leicester moved to third in the table while Brighton are 16th and are in the thick of a developing relegation struggle.
Scroll down and click through to see who struggled and who shone at the King Power.
5. Joel Veltman 5/10
Played at right wing back in Lamptey's absence. Looked to get forward but when Leicester hit their stride he was pegged back
6. Ali Jahanbakhsh 5/10
Had a firm effort well saved by Schmeichel early on. Worked hard and pressed well but replaced by Alzate on 55 minutes
7. Yves Bissouma 5/10
Had been supported by Ben White in central midfield in recent matches. Bissouma was over run by the Foxes midfield due to formation and Leicester's sharp play. Replaced by Mac Allister
8. Pascal Gross 5/10
Didn't have the impact of late. Gave the ball away early far too much in the first half and another who struggled to cope with a very sharp Leicester attack