He is expected to acknowledge that Britain needs to reduce the numbers of low-skilled migrants coming to the country to work.
At a party political broadcast tonight, Mr Miliband will admit that Labour got it wrong the last time they were in power.
He will insist that although immigration is "good for Britain", migration should work for all the country's people, and not just a small minority.
More top news
A historic night in Philadelphia saw mixed emotions as a bitter rivalry was settled before Bill Clinton made his pitch for his wife to lead.
The Labour leadership contender promised to focus on 'equality of outcome' rather than the 'equality of opportunity' pursued under Blair.
A dull and wet start with some sunshine in south-east Scotland and north-east England.