Nearly 70 per cent of people support introducing drug tests at schools, a survey has found.

Of the 627 people in a Democratic Party survey in the past two weeks, 68.9 per cent supported drug tests at primary and secondary schools.

Seventy-six per cent said they were worried that drug problems in schools were getting more serious, and 76 per cent said the government should make more resources available to combat the problem.

More than half of respondents said approval from schools or parent-teacher associations should be obtained before introducing tests.