|Date of birth||28 May 1954|
|Place of birth||Scharnebeck, West Germany|
|1989||FC Schalke 04 (assistant)|
|1992–1993||F.C. Hansa Rostock (assistant)|
|2001–2004||VfL Wolfsburg II|
|2007–2008||1. FC Saarbrücken|
|2012–2013||Saint George SA|
|2015–2016||Hannover 96 II|
|* Senior club appearances and goals counted for the domestic league only|
Krüger began his coaching career as assistant coach of Peter Neururer with FC Schalke 04. In September 1989, he was named as the new head coach of the 2. Bundesliga club Hannover 96, but was suspended after one year. In 1999, he worked one year lower league team VfV Hildesheim, before signing a contract as assistant coach of Erich Rutemöller at F.C. Hansa Rostock. In the 1994–95 season, Krüger took over the coaching job at Holstein Kiel. He then worked in Egypt, coaching Arab Contractors and winning the African Cup. One year later he led Al-Masry to win the Egyptian Cup against his former team Arab Contractors in 1998. In 1998, he returned to Germany and was named head coach of Kickers Emden and later took the same job at the second team of VfL Wolfsburg.
From 15 March 2004 on, Krüger was head coach of Eintracht Braunschweig and led the club back in the 2. Bundesliga in 2006. On 4 October 2006, Krüger was fired together with sporting director Wolfgang Loos by the Lower Saxon club. On 13 June 2007, Krüger was named as the new head coach of the Regionalliga relegated team 1. FC Saarbrücken, following the club's hiring of Wolfgang Loos in April 2007.
In January 2008, Krüger went back to Africa to coach Sudanese club Al-Merreikh, he led Al-Merreikh to win the Sudanese Premier League cup in November 2008 and the Sudan Cup in December 2008. Krüger signed on 21 September 2009 a contract as head coach with Alemannia Aachen and was just a half year later dismissed.
In 2012, he became the manager of Ethiopia's Saint George SA. In 2013, he returned to Al-Merreikh in Sudan, but was fired after a loss against Uganda's Kampala City Council FC in the CAF Champions League in February 2014.
His full-time job is as a sports and geography teacher.
- "96 entlässt U23-Trainer Michael Krüger" (in German). paz-online.de. Retrieved 31 May 2016.
- "Neuanfang ohne Michael Krüger" [New start without Michael Krüger] (in German). Alemannia Aachen. 9 May 2010. Retrieved 4 July 2012.
- Pauli, Christoph (29 September 2010). "Michael Krüger kehrt an den Nil zurück" [Michael Krüger returns to the Nile] (in German). az-web.de. Retrieved 4 July 2012.
- "Coaches 2012 - 2013". saintgeorgefc.com. Retrieved 9 December 2012.
- "Niedersachse findet sein Glück in Afrika" (in German). nwzonline.de. Retrieved 26 February 2014.
- "Deutsche Trainer im fliegenden Wechsel" (in German). kicker.de. Retrieved 26 February 2014.