Ruth Davidson made the claim at an event at the Conservative Party Conference in Manchester and challenged the SNP on their plans for welfare.
She said the Tories were responsible for creating more than 100,000 new private sector jobs in Scotland and were helping people back into work.
Ms Davidson, MSP for Glasgow urged Conservatives to ignore calls for welfare reforms to be scrapped.
She said: "Don't listen to the nonsense spouted by all the usual left-wing suspects.
"Welfare reform is supported by an overwhelming majority of people and yes, by a large majority of Scots."
She claimed the other parties were inconsistent on welfare reform. She added: "When it came to the vote, Labour failed to back welfare reform. Now Ed Miliband says he would cap welfare spending, but can't tell us which benefits he'd include in the cap.
"Last year, Nicola Sturgeon told a parliamentary committee that she supported the principle of welfare reform but in January she attacked the benefit cap.
"Which is odd because over the summer Alex Salmond said he supports one, but won't say at what level at which he thinks it should be set."
Ms Davidson used the welfare debate to criticise the SNP argument for Scottish independence. She said lack of clarity on affordability of a separate welfare system undermines the SNP case.
She said: "The SNP have used changes to welfare and benefits as arguments for separation but have refused to tell the people of Scotland what they'd do if they had the powers.
"So I challenge them - I challenge them to lay out in their delayed white paper exactly what the welfare system would look like in an independent Scotland
"And, crucially, how it would be funded."
She praised the announcement by George Osborne on making long term unemployed people carry out work for benefits.
The move, which was also backed by the CBI, includes carrying out work in the community for benefits and seeking help for illiteracy or drug dependency to improve the chances of finding a job.
Ms Davidson said: "It's about starting or maintaining the habit of work; it's about making sure people of working age don't lose the will to get out and about.
"But it's also about self- esteem, meeting new people, experiencing different environments, even learning new skills."