Black people were seven times more likely than whites to be stopped and search by the police last year, official figures showed on Tuesday.
Ministry of Justice data showed the rate was even more disproportionate than the previous year, when it stood at six times more likely.
Asians were about twice as likely to be stopped and searched - about the same as the previous year.
The increase in the number of stops on ethnic minorities was partly explained by the police response to the July 7 bombings, the report said.
There were 878,153 stops and searches recorded by police in the year, up 3% on the previous 12 months.
Most of this rise was due to an extra 14,000 black people being targeted by stop and search - a 12% rise - and a 14% increase in the number of Asians targeted, it said.
"This increase could be explained, in part, by the London bombings," said the document.
Stop and searches conducted under anti-terror powers rocketed by 34% in the year to 44,500, added the paper.
This included an 84% rise in the number of Asians stopped and searched under counter-terror measures, and a 51% increase in blacks targeted under the measures.
However, a separate document also published by the Government on Tuesday gave the number of stops and searches under anti-terror powers as just over 50,000, rather than the 44,500 given in the first publication. It revealed that those 50,000 stops led to just 563 arrests.
