He played junior hockey for the Saskatoon Blades from 1971 to 1973. The Montreal Canadiens chose him 37th overall in the 1973 NHL Amateur Draft while the Vancouver Blazers picked him 31st overall in the 1973 WHA Amateur Draft.
Humphreys opted for the WHA. He turned pro with the Roanoke Valley Rebels in 1973-74 and played in the minors until 1975-76 when the Calgary Cowboys (the relocated Blazers) called him up for eight games. He played 22 games for the Quebec Nordiques the following season.
He retired in 1977.
- 1972-73 Del Wilson Trophy
- Ed Humphreys 1973 NHL Amateur Draft (RD 3-37 overall, Saskatoon, WCHL). Eyes On The Prize.com. Retrieved on 2010-05-05.
- Ed Humphreys. Hockey Reference.com. Retrieved on 2010-05-05.