Ferguson will reach his 700th Premier League game as Manchester United boss when the Red Devils face Everton at Goodison Park on Saturday.
“It is dedication and it is a fantastic achievement,” Wenger said.
“He deserves a lot of credit to show such consistency at the top level which needs special qualities and special dedication.
“That certainly means 700 sleepless nights before and 700 sleepless nights sometimes after the game!”
