The MP was met by a placard-waving crowd, some of whom had brought hounds along with them.
They were angry that Mr Foster was one of 11 MPs in the South East to have signed Gerald Kaufman's Early Day Motion calling for a return of the Hunting Bill.
Mr Foster had gone to Rye to deliver his annual report at the Town Hall.
Hunt supporter and Camber farmer Rosemary Cooke said: "When farmers have livestock which die in the field the advice from DEFRA is to take the corpses to the local hunt kennels.
"But if there is a ban the kennels would be closed then what would happen to fallen stock? Mr Foster did not have an answer for this.
"We did not feel we were able to get our point across. Mr Foster maintained he had a petition signed by 10,000 but the majority of those would be from urban areas. This is a town versus country thing.
"We were fairly incensed and Mr Foster will have to get used to seeing us demonstrating."
Nick Onslow said: "Signing that early day motion is equivalent to signing a death warrant for the dogs that were there on Saturday and thousands like them."
Mr Foster said: "There were around 30 people of which only five were my constituents. They are entitled to their views and I told them I was pleased they had come.
"There were accusations of class warfare but this is an animal welfare issue.
"Hunting is not at the top of the agenda, but it needs to be settled. It has been decided three times by the Commons already and it cannot be frustrated any longer.
"Two thirds of my constituents in the rural areas support a ban and more than 90 per cent of constituents in Hastings are in favour.
"Their posters claimed that 59 per cent of the population is against a ban.
"Well all I can say is they do not live in my constituency."
He went on to say: "Hunting with dogs is an inherently cruel activity carried out for the entertainment of a minority and I firmly believe it must be banned.
"Yet in spite of the overwhelming support for a ban among MPs and the British public, this issue has yet to be resolved.
"The Government made a commitment to reintroduce the Hunting Bill and enable Parliament to bring this issue to a conclusion.
"The only way to resolve this issue satisfactorily is to outlaw this barbaric practice once and for all.
"I continue to receive huge amounts of correspondence from constituents on this issue and it will not simply go away. Now is the time for the Government to deal with it.
"Now is the time to consign hunting with dogs to the history books. Now is the time to deliver the ban."