Exhibit 3.1 THE COMPANIES ACT (AS REVISED) OF THE CAYMAN ISLANDS COMPANY LIMITED BY SHARES FOURTH AMENDED AND RESTATED MEMORANDUM OF ASSOCIATION OF Trip.com Group Limited (as adopted by a special resolution passed on June 30, 2023) 1. The name of the Company is Trip.com Group Limited . 2. The Registered Office of the Company shall be at the offices of Maples Corporate Services Limited, PO Box 309, Ugland House, Grand Cayman, KY1-1104, Cayman Islands, or at such other place as the Directors may from time to ...