The 30-year-old Manchester City defender was sanctioned after being sent off from the bench during China's 1-0 defeat to Qatar in Tianjin earlier this month.
Sun was also fined 7,000 Swiss francs (£3,450) for verbally abusing Lebanese referee Talaat Najm as China went down to a controversial penalty to scupper their hopes of reaching the final round of the Asian qualifiers for the 2010 World Cup.
"I was surprised when I heard of the suspension," said Sun. "I just said some words, which are usually heard in the Premier League. I did not verbally abuse him or insult him.
"I do know I did something wrong at the time. But in the past, China has been disadvantaged by the referee's whistle.
"I have nothing to say as China is a constant underachiever in soccer. But I still believe the referee at that match had problems with his whistle."
The ban rules him out of the forthcoming Olympics in Beijing, where he could have played as one of three over-age players, but Sun is adamant he has no intention of retiring from the international game yet.
"Yes, it will be a long time before I show up for the national team again, but anything is possible," he said.
"I am not quitting yet and I still have the ambition to play for the national team."
Sun looks set to leave Manchester City following the arrival of new manager Mark Hughes but intends to continue playing in Europe next season.
"I still hope to play in European leagues," he said.
"The 2008 Euros shows they are playing the best soccer in the world." Tweet

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Sun giving away a penalty...i dont believe it
Or Sun gettin sent off, should i say
what day is it?
Sun is no longer a City player so why is this story in the City section. Sorry I forgot, the MEN hasnt a clue these days of anything that goes on at COMS so I suppose you just feed off these kind of non stories.
Well I feel better now I have read this, who needs articles on who we may be signing etc when we can hear about Sun's suspension?
I will sleep easy tonight!
If only he ever showed that kind of passion when decisions went against City! Instead of laughing (against Birmingham)!
You must have something else more exciting than this article to start the day.Get a Life
Nice guy, average player, good luck Sun...aye aye ippy
Good luck Sun.
Albeit,somewhere else.
Thats our star player going then! Also it says in the daily rag that arshavin is going to arsenal for 10 million , and the only other club he would sign for would be chelsea . Not suprised he would not want to come to manchester , the last time he was here we had thousands of people p**sing in the street , drinking from half seven in the morning and fighting with the police.
LETS HOPE HE QUITS US THE WORST PLAYER IVE SEEN IN A CITY SHIRT FOR A LONG TIME RUNS ROUND LIKE A HEADLESS CHICKEN AND ALWAYS GOOD TO CONSEAD A PENATLY OR GIVE A GOAL AWAY
Go on sun be a good boy and retire completely
AND WE CARE BECAUSE?????
It beats him laughing when he gave away the pen at birmingham.
I thought he had already gone. Hurry up and show him the exit door
has Sun's contract not run out yet?
When is the released list out? It seems very late this season.
Fascinating.
No offence Sun but I was relieved when I realised this article related to your career with China
Why would any City fan be interested in this aricle, he is and has always been a liabilty at City and the sooner he goes the better! Great journalism MUEN!
"I just said some words, which are usually heard in the Premier League"
The mind boggles!
A casual enquiry as to the sexual habits of a family member perhaps?
WHO CARES ,THOUGHT HE HAD GONE LONG IN TO THE SUNSET WELL HOPED HE HAD,SO MEN THERES NO NEWS AGAIN TO DAY,
Just when the articles on here couldnt get any worse they come up with this nugget!! Brilliant!
His contract ends 30th June unless of course we offer him a new Ronaldinho type contract.....
Did you Know:
- All polar bears are left handed.
-There are 1792 steps on the eiffel tower.
-A dragonfly has a lifespan of just 24hrs.
-Bats always turn left when exiting a cave.
-Leonardo Da Vinci intented scissors.
All of the above I hope you will find slightly more useful and interseting than this story.
CTID!!
He's really not that bad.