As　an　intelligent　material,　polymer　gel　is　able　to　respond　to　external　stimulus,　including　temperature,　chemical　concentration,　pH,　etc.　The　theoretical　framework　of　chemo-mechanical　coupling　behavior　for　intelligent　polymer　gel　is　emphasized　in　this　paper.　Analytical　solutions　of　the　displacement　and　concentration　function　are　found　for　one　dimensional　chemo-mechanical　coupling　problem.　It　is　shown　that　the　present　chemo-mechanical　theory　can　be　applied　to　model　chemo-mechanical　coupling　behavior　of　intelligent　polymer　gel.　This　study　has　important　significance　to　reveal　the　mechanism　of　chemo-mechanical　coupling　behavior　of　the　polymer　gel.