Optimizing　export　growth　patterns　and　improving　the　quality　of　export　trade　have　become　prominent　issues　that　need　to　be　addressed　urgently　in　the　context　of　increasing　global　economic　uncertainty.　This　study　utilizes　matched　data　from　the　CEPII　database　(1995-2020)　and　WTO　tariff　database,　adopts　a　product-level　perspective　based　on　the　triple　margins　of　exports,　and　uses　an　individual-time　two-way　fixed-effects　model　to　investigate　the　impact　of　import　trade　liberalization　on　China＇s　export　growth　pattern.　The　research　findings　are　as　follows:　(1)　Increasing　levels　of　import　trade　liberalization　are　beneficial　for　enhancing　the　extensive　margin,　intensive　margin,　and　quantity　margin　of　products,　while　exerting　a　restraining　effect　on　the　price　margin.　This　strengthens　the　price　advantage　of　Chinese　products,　indicating　that　import　trade　liberalization　helps　optimize　China＇s　export　growth　pattern.　(2)　Compared　with　the　intensive　margin,　import　trade　liberalization　has　a　more　significant　promoting　effect　on　the　extensive　margin.　(3)　The　conclusions　drawn　from　heterogeneity　analysis　suggest　that　trade　liberalization　has　a　more　pronounced　effect　on　the　extensive　margin,　intensive　margin,　and　quantity　margin　of　products　in　medium-high　technology　industries,　differentiated　products,　and　intermediate　goods.　This　study　holds　important　theoretical　and　practical　significance　for　evaluating　the　economic　benefits　of　expanding　imports,　optimizing　China＇s　export　growth　pattern,　and　improving　the　quality　of　export　trade.