Chelsea bounced back from their home defeat to Liverpool and ended Hull’s sequence of four straight wins with a deserved victory at the KC Stadium.
Frank Lampard’s brilliant early lob put Chelsea ahead but Daniel Cousin almost equalised with a low strike from 20 yards that hit the post.
Suicidal hesitation in the Hull defence allowed Nicolas Anelka to steal in and smash home Chelsea’s decisive second.
Florent Malouda then converted Ricardo Carvalho’s cross from six yards.
Hull had beaten the four previous London clubs they had met this season – Fulham, Arsenal, Tottenham and West Ham – but they were brought back down to earth by Chelsea.