Mr Miliband said that David Cameron's government will stand only for the "privileged few" as he promised to deliver an economy that "works for the working people".
He also confirmed his pledge to scrap the spare room subsidy, which he described as a "bedroom tax", and tackle the cost-of-living "crisis".
Unusually for Mr Miliband, he chose not to wear a suit, opting instead for a grey v-neck jumper and jeans. Earlier in the day he took a stroll along Brighton seafront with his wife Justine and his children, Daniel and Samuel.
Mr Miliband said: "We are going to scrap the bedroom tax, that's what I mean by a government that fights for you.
"And we are fighting for all of the low-paid people around our country. One of the proudest achievements of the last Labour government was the national minimum wage, making work pay for people.
"But under David Cameron's Government people are falling behind, the national minimum wage now paying people £20 less after inflation than it did when David Cameron came to office. That's just wrong.
"When we see that happening and when we think about one of the big banks, do we really think they can't afford to pay heir cleaners a bit more?"
It was "wrong" that millions of people "are going out to work unable to afford to bring up their families".
He added: "The Labour government will put it right, we will strengthen the national minimum wage, we will make work pay for the workers of Britain. » | Steven Swinford, Senior Political Correspondent | Saturday, September 21, 2013
