More than 1,300 social insurance workers have quit their jobs since 2007 complaining heavy workloads and insufficient remuneration.
With new laws making more people the beneficiaries of social insurance, the workers have had to work much harder.
A total of 1,353 workers have quit over the last four years, according a report presented Friday to the National Assembly, Vietnam's legislature, by the Ministry of Labor, Invalids and Social Affairs.
Minister Pham Thi Hai Chuyen said in the report that the workload of social insurance workers has increased remarkably since 2007, when the Social Insurance Law and Health Insurance Law took effect.
Social insurance workers in large cities have had to work extra hours and late into the night, Chuyen said.
But they earned an average pay of just VND4 million (US$192) a month in 2010, including net wages and a little bonus, and this had increased to just VND4.9 million this year, which the minister said was not enough to make the workers feel secure and stay on the job.