Chief Scout Alex Rae took charge of the match while Karl Robinson, Mick Harford and Ian Wright were all present, watching on from the stands along with Stephen Gleeson, Shaun Williams and Luke Chadwick.
The game provided a chance for players such as Ian McLoughlin, Mathias Kouo-Doumbe, Adam Chicksen and Scott Allan to get some much-needed minutes as Robinson’s side head into a tough period of fixtures.
Striker Ryan Lowe also featured, having recovered from the illness that kept him out of last weekend’s game against Portsmouth along with two trialists.
Elsewhere, Academy prospects Harry Hickford, Jon Osae, Brendan Galloway, Will Summerfield and Dele Alli all got run outs in the match held at stadiummk.
Allan, who has been limited to substitute appearances since joining on loan in September, looked eager to impress early on and saw a fierce 25-yard shot fall just over after 16 minutes.
Kouo-Doumbe is another who has seen appearances restricted but he showed no signs of rustiness when he drove down the right wing before pulling back a dangerous cross which was eventually dealt with by the visitors.
Despite dominating possession for most of the first half, the Dons fell behind ten minutes before the break after McLoughlin could only parry a Brighton free-kick and, at the second attempt, the Albion forward was able to prod home to give the away side the lead going into half-time.
It took only two minutes after the restart for hosts to pull level courtesy of a Alli goal. A trialist, who had come on at half-time in place of Jon Osae, showed great feet to slot a through ball onto the run of Alli who equalised with a composed finish.
The impressive Allan went close once again, this time from a free-kick, but his powerful effort was well-saved by the Albion ‘keeper.
However, five minutes later the boys from MK1 took the lead thanks to the same trialist who set up Alli who, after some clever footwork, hit a vicious shot from 30-yards into the top right hand corner.
McLoughlin was then called into action a couple of times after the goal but the Republic of Ireland U-21 international stood firm and was equal to everything Brighton threw at him.
The Dons comfortably saw out the victory in the end although they could have stretched the lead through Lowe and Allan but both players saw their efforts fall off target.
The only scare for Robinson was an incident involving McLoughlin but the ‘keeper, after receiving lengthy treatment, was able to recover and the Dons held on to record a confidence-boosting win.
MK Dons (4-2-3-1): McLoughlin; Osae (Trialist 46), Hickford, Kouo-Doumbe, Chicksen; Galloway, Alli; Osei-Addo (Summerfield 77), Allan, Trialist; Lowe.
Subs not used: Burns.