But the BBC drama - which celebrated its 30th anniversary last month - was beaten to the TV soap of the year award by its ITV rival Coronation Street.
Ant and Dec were named TV personalities of the year for the third year running at the industry bash in central London.
Susanna Reid, meanwhile, won best news presenter/reporter for the second year in succession.
The event saw a number of last year's award recipients recognised again, among them Strictly Come Dancing (best reality programme), Channel 4's Gogglebox (best entertainment programme) and BBC Breakfast's Carol Kirkwood (best weather presenter).
Other winners included BBC One's popular teatime quiz Pointless (best daytime programme), Silent Witness (best crime programme) and Downton Abbey, which was named best drama over its ITV stablemates Cilla and Doc Martin.
Capital Radio's breakfast show was named best digital radio programme, while Radio 2's Chris Evans won the digital radio personality prize.
The event also saw the BBC's football highlights show Match of the Day honoured with a special Tric award.
Dyer's EastEnders character, Mick Carter, made his first appearance on Albert Square on 25 December 2013.
Speaking to chat show host Graham Norton last month, the 37-year-old Human Traffic star said he was "happy to sit back and be part of" a show he likened to "a retirement home".
First presented in 1989, the Tric Awards are voted for by members of the TV and radio industries.

The England and Wales Cricket Board made the move in an attempt to improve the standard of pitches and Rhodes says it has already made a difference.
"I think it has," he told BBC Hereford and Worcester.
"If you look back, there have been some very poor wickets - maybe this was the only way they could do it."
The 51-year-old former England wicketkeeper added: "I think, to a certain extent, it's worked.
"There have been some criticisms about wickets being too flat but if you're prepared to bat for a long period of time and concentrate, you'll get runs."
Worcestershire's two Championship matches so far  - which have both been draws - have produced eight centuries, with five coming in the match against Gloucestershire and three more in their last game with Essex.
England all-rounder Moeen Ali, Joe Clarke, Brett D'Oliveira and Tom Kohler-Cadmore have all reached three figures for the New Road side and Rhodes says better pitches will help sort out the best players.
"Too many good players were playing forward defensive shots and getting out to average bowlers - that's what was happing before with the wickets," he added.
"Now those bowlers are struggling a little bit - which I think is a good thing."

At the close the Dow was 0.1% lower at 19,918, the broader S&P 500 was down 0.2% at 2,260 and the Nasdaq was 0.4% lower at 5,447.
With a 2% fall, Wal-Mart was one of the big losers.
Investors stepped back from a recent rally fueled by optimism that President-elect Donald Trump will invigorate economic growth.
Analysts said the market appears to be winding down before the holiday period.

Inderjit Singh Dhariwal, 49, was injured at Samsons in Rood End Road, Oldbury, in the early hours of Sunday.
Nicolas Salhan, 36, of Haybridge Avenue, Stourbridge, and Jonathan Davies, 42, from Old Bridge Walk, Rowley Regis, have been charged.
They are due to appear at Wolverhampton Crown Court on 30 November.
Mr Dhariwal, of Oldbury, was taken to hospital in a critical condition but died on Monday.
EastEnders' Danny Dyer has been named soap personality of 2015 at the TV and Radio Industries Club (Tric) awards.
[NEXT_CONCEPT]
Worcestershire director of cricket Steve Rhodes says the decision to scrap the toss in the County Championship this season looks like it is working.
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The Dow Jones Industrial Average continued to back away from Tuesday's record close.
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Two men have appeared in court and been charged with murder following the death of a man who suffered serious head injuries at a banqueting venue.