China revoked 6,045 food production licenses from 5,654 producers last year in a national campaign to improve food safety standard, the country's top quality watchdog said Thursday morning.

Meanwhile, quality inspectors conducted 1.07 million checks on food producers and rectified 140,000 problems, according to the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ).

Wang Yong, director of AQSIQ, told quality inspectors across the country at a year-end working conference that the crackdown on unsafe food products would continue this year as the general situation remains grim.