The number of visas granted to students from outside the EU is to be cut in a crackdown on abuses of the system, UK Home Secretary Alan Johnson has said.
Mr Johnson said tougher rules would require applicants to speak English to near-GCSE level and ban those on short UK courses from bringing dependants.
He said the rules were aimed at those who came to the UK primarily for work.
The Home Office would not confirm reports the changes may cut visas issued this year by tens of thousands.
A spokesman said the review of student visas had been ordered in November. In 2008/9, about 240,000 student visas were issued by the UK.
News of the measures, which will not require legislation and will be introduced within weeks, comes a week after student visa applications from Nepal, northern India and Bangladesh were suspended amid a big rise in cases.
'Raise the bar'
Last year the UK introduced a system requiring students wishing to enter the country to secure 40 points under its criteria.
However, the government has faced criticism that this has allowed suspected terrorists and other would-be immigrants into the UK, only for them to stay on despite their visas being temporary.
http://news.bbc.co.uk/1/hi/uk/8502640.stm