The club had accepted an offer from private company ICTS to have sniffer dogs outside Madejski Stadium as a trial but the plans have been scrapped after complaints from supporters.
Reading's head of communications Andy West explained to icBerkshire.co.uk: "This was not a police initiative and we simply accepted the offer of a trial from a private company.
"It was never planned to actively search people and the initiative was primarily a training exercise for ICTS but we do not want to upset supporters so the plans have been cancelled.
"We do not believe, and have never believed, that we have a problem with drugs at the Madejski Stadium and we understand the public reaction to the plans.
"It was never our intention of offending any supporters so the trial will not be taking place."