The new figure, which is costing £150,000 to make, will be unveiled next month.
The waxwork will have taken four months to complete by the time it's launched.
The 16-year-old was in the UK for the premiere of his documentary music film Never Say Never last week and picked up the international breakthrough act at the Brit awards.
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We're sure his fans will be just as delighted as we are that Justin will be joining the A-list here in March
Liz Edwards
PR manager at Madame Tussauds
Waxworks of Justin Bieber will also be unveiled at the same time at Madame Tussauds in Amsterdam and New York.
Liz Edwards from the attraction said: "Justin Bieber is truly a worldwide sensation.
"We have been absolutely inundated with requests from young fans from around the world to see him at Madame Tussauds.
"We're sure his fans will be just as delighted as we are that Justin will be joining the A-list here in March."
Justin Bieber will be seen in the interactive music zone alongside stars like Lady Gaga, Amy Winehouse and Justin Timberlake.
But the figure may be out of date quite soon.
The star's tweeted to say he's cut his hair for charity.
He said: "Yeah so it's true...i got a lil haircut...i like it...and we are giving all the hair cut to CHARITY to auction. Details coming soon."
BBC