In the annual presidential speech to Congress, Mr Humala said he aimed to cut Peru's poverty to 15% by the end of his term in 2016.
He said his government had not yet achieved all it set out to do.
The address comes days after Mr Humala reshuffled his cabinet amid unrest over a controversial mining project.
Mr Humala took the oath of office on 28 July 2011 vowing to eradicate poverty and social exclusion.
But many Peruvians complain that he has not done enough to share the wealth from the country's exploitation of its natural resources.
"I stand at the core of my proposal," Mr Humala told Congress.
"We have begun to lay the groundwork for the great transformation that most citizens of our country crave: inclusive growth... although we have not achieved everything we set out to achieve."
He told Congress that "all beginnings are tough", but vowed to extend social programmes to lift more people out of poverty.
Mr Humala's first 12 months in office have been marked by disputes and conflict and his approval rating fell to a new low of some 40% this month.
Earlier in July, five people were killed in clashes with police during protests against a huge mining project in the Cajamarca region of northern Peru.
Last Monday, Mr Humala responded to the public anger at this and other social and environmental controversies by reshuffling his cabinet for the third time in his term.
He told Congress the government was "aware of the persistence of social discontent and unsatisfied hopes among a sector of the population that wants a better quality of life".
But said that the country needed to "overcome this culture of conflict".

The group, who set off from the Canary Islands on 20 December, took 47 days to complete the 3,000-mile row to Antigua.
Lee Spencer, Nigel Rogoff, Paddy Gallagher and Cayle Royce finished fifth out of the 26 competing crews.
The Talisker Challenge - described as "the world's toughest row" - got off to a difficult start, with severe sea sickness hitting the team.
Cayle Royce - 29, from Dartmouth. Suffered serious injuries serving in Afghanistan
Paddy Gallagher - 30, from Cambridgeshire. He was injured in Afghanistan while serving with the Irish Guards
Nigel Rogoff - 56, from Hereford, who lost his leg while taking part in an RAF parachuting display
Lee Spencer - 46, from Yelverton in Devon. He lost a leg when he was struck by debris when he stopped to rescue a seriously injured motorist on the M3
The team, who named their boat Legless, also had to contend with huge waves and sleep deprivation, rowing for two hours on and two hours off, twenty four hours a day.
They crossed the finish line in 46 days, 16 hours and 49 minutes.
A tweet from Kensington Palace is among the hundreds of messages of congratulations for the crew on social media.
The exhausted, but jubilant, skipper Cayle Royce, who lost both his legs in a bomb explosion in Afghanistan, said: "We are so proud to be the first all-amputee team to row an ocean and extremely humbled by the support we have received."
He said the message the team wanted to send out was that there was life beyond injury.

The Australian singer, 48, and English actor Joshua Sasse, 28, announced their engagement earlier this year.
The couple have been vocal supporters of the "Say I Do Down Under" marriage equality campaign.
The government has proposed holding a public vote on same-sex marriage in February 2017.
Mr Sasse, who helped launch the "yes" campaign at the weekend, said the pair would like a wedding in Melbourne, "but we will not get married until this law has passed in Australia".
"When I found out that gay marriage was illegal in Australia, I was astounded," he told Australia's Seven Network.
"I simply can't fathom on any level, whether it's moral or religious or anything, that I have the right to get married and to marry the person that I love and that somebody else doesn't because of their sexual orientation."
Peru's President Ollanta Humala has marked his first year in office by pledging to increase social spending to help the country's poorest people.
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Four ex-serviceman have become the first amputees to row across the Atlantic.
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Kylie Minogue's British fiance has said the couple won't get married until same-sex marriage becomes legal in Australia.