打開京東官網，點擊右手邊登錄賬戶，登錄進去以後，點擊我的，選擇我的個人中心；
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2.點擊設置，進入賬號設置；
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3.再選擇“賬戶安全”頁面，點擊賬戶安全；
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4.點擊“手機驗證”後面的“修改”按鈕進行修改已經綁定的手機號，點擊之後，有壹個修改手機號碼
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5.點擊修改手機號碼，通過認證魔方，選擇合適的認證方式，就能修改手機號碼了。
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