The Blues kept alive their hopes of Heineken Cup rugby next season with a crushing nine-try Celtic League win.
Blues (34) 60
Tries: Morgan (3), Baugh, J Robinson, Shanklin (2), Senekal, M Williams
Cons: Harris (6)
Munster (14) 14
Tries: Henderson (2)
Cons: Holland (2)
With a depleted Munster side still hungover from last week's European exit against Wasps, Cardiff secured a crucial bonus point before half time.
Craig Morgan got a hat trick, with other scores from Dan Baugh, Jamie Robinson, Tom Shanklin (2), Heino Senekal and Martyn Williams.
Slim consolation for the visitors came from a first-half Rob Henderson brace.
A sustained Blues attack led to the first try, a loose Rhys Williams pass in midfield holding up the defence and giving Martyn Williams the time to send Morgan in at the corner.
Jamie Robinson then broke past Mike Mullins from turnover ball deep in his own half, feeding Shanklin who found the
supporting Baugh for the best try of the match.
With John Yapp making a mess of Munster tight-head Gordon McIlwham at the scrums, the signs were ominous for the visitors.
Iestyn Harris' speed, strength and sleight of hand made the third, beating three men before feeding Jamie Robinson who went
in under the posts.
Munster hit straight back, Lions centre Henderson bulldozing over the top of Nicky Robinson's midfield tackle.
It was a minor setback for the Cardiff side, though, as they soon secured their bonus point, the ball being spread across
field after a driving line out for an unmarked Morgan to claim his second score.
Henderson was let in for another soft try, but on the stroke of half time lovely interplay by the Robinson brothers freed
Morgan for the winger to complete his hat-trick.
The Blues wasted no time at the start of the second half, an excellent, sustained build-up freeing Shanklin for a try on the
Munster's woes increased when Donncha O'Callaghan was sin binned for the second successive week for a blatant offside,
impressive Blues lock Senekal crashing over from the resultant attacking position.
The home side went to sleep for 20 minutes before a wave of substitutions injected new life and Martyn Williams crossed after
a powerful rolling maul.
A brilliant Jamie Robinson break down the right wing freed Shanklin for his second try, proving the final score as the Blues
completed a second-half shut-out of the hapless visitors.
"All we can do is win the games we have left," said Blues coach Dai Young. "We've tried to take pressure off the players by not focusing on where we'll be playing next season.
"We don't like having to rely on others to do us favours, but we're pleased with the win tonight and will now focus on the Warriors."
Blues: R Williams; T Shanklin, J Robinson, I Harris, C Morgan; N Robinson, R Powell; J Yapp, A Lewis, B Evans, H Senekal, J Brownrigg, D Baugh, M Williams (capt), N Thomas.
Replacements: K Fourie, R Thomas, J Goode, R Sowden-Taylor, D Dewdney, N Macleod, M Allen.
Munster: C Cullen; M McPhail, M Mullins, R Henderson, S Payne; J Holland (capt), E Reddan; F Roche, J Flannery, G McIlwham, D O'Callaghan, D Pusey, S Keogh, A Quinlan, P Malone.
Replacements: R Callaghan, M Cahill, T Hogan, E Halvey, M Prendergast, B Murphy, J Staunton.
Referee: Iain Ramage (Scotland).