The Shipley constituency would be ripped apart under recommendations submitted to the Boundary Commission by the Labour Party.
Labour wants parts of the constituency to be included in Keighley and Shipley and parts in Airedale and Wharfedale.
Shipley MP Philip Davies said: “These proposals are ridiculous; it proves the Labour Party neither understand nor care about the communities in the Shipley constituency. It is nonsensical splitting Bingley from Bingley Rural and also splitting Shipley from Baildon which clearly belong together.”
The Labour Party proposals for Yorkshire and Humber plans would see Keighley Central, Keighley East, Keighley West, Worth Valley, Bingley Rural, Shipley and Windhill and Wrose as one constituency of Keighley and Shipley.
Baildon, Bingley, Wharfedale, Ilkley, Craven and Guiseley and Rawdon would make up the Airedale and Wharfdale constituency.
Last month the Boundary Commission published its initial proposals to reduce the number of MPs from 650 to 600. It would take the number of seats across the district from five to four with Bradford South most at risk. Under the official proposals Shipley would lose Wharfedale to Keighley but gain Guiseley and Rawdon from Pudsey.
The boundary proposals are now open to public consultation until 5th December 2016. Submissions can be made online at: www.bce2018.org.uk, or in writing to: Boundary Commission for England, 35 Great Smith Street, London SW1P 3BQ.
Mr Davies encourages constituents to make their views known to the boundary commission.