Exhibit 3.1

SECOND AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

P.F. CHANG’S CHINA BISTRO, INC.

FIRST: The name of the corporation formed hereby is P.F. Chang’s China Bistro, Inc. (the “Corporation”).

SECOND: The address of the registered office of the Corporation in the State of Delaware is Corporation Service Company, 2711 Centerville Road, Suite 400, City of Wilmington, County of New Castle, State of Delaware 19808. The name of the registered agent at such address is Corporation Service Company.

THIRD: The purpose of the Corporation is to engage in any and all lawful acts or activities for which corporations may be organized under the General Corporation Law of the State of Delaware (the “DGCL”), as from time to time amended.

FOURTH: The total number of shares of capital stock that the Corporation shall have authority to issue is 100 shares of common stock, par value $0.001 per share (the “Common Stock”). The number of authorized shares of Common Stock may be increased or decreased (but not below the number of shares thereof then outstanding) from time to time by the affirmative vote of the holders of at least a majority of the voting power of the Corporation’s then outstanding shares of stock entitled to vote thereon, voting together as a single class, irrespective of the provisions of Section 242(b)(2) of the DGCL (or any successor provision thereto), and no vote of the holders of any of the Common Stock voting separately as a class shall be required therefor.

FIFTH: In furtherance and not in limitation of the powers conferred by law, subject to any limitations contained elsewhere in this Certificate of Incorporation, bylaws of the Corporation may be adopted, amended or repealed by a majority of the Board of Directors of the Corporation (the “Board of Directors”), but any bylaws adopted by the Board of Directors may be amended or repealed by the stockholders entitled to vote thereon. Election of directors need not be by written ballot.

SIXTH: In addition to the powers and authority herein before or by statute expressly conferred upon them, the Board of Directors is hereby empowered to exercise all such powers and do all such acts and things as may be exercised or done by the Corporation, subject to the provisions of the DGCL, this Certificate of Incorporation and the bylaws of the Corporation.

SEVENTH: The number of directors of the Corporation shall be fixed from time to time in the manner provided in the bylaws or any amendment thereof adopted by the Board of Directors.

EIGHTH: (a) A director of the Corporation shall not be personally liable either to the Corporation or to any stockholder thereof for monetary damages for breach of fiduciary duty as a director, except (i) for any breach of the director’s duty of loyalty to the Corporation or its stockholders, (ii) for acts or omissions that are not in good faith or that involve intentional

misconduct or knowing violation of the law, (iii) for any matter in respect of which such director shall be liable under Section 174 of Title 8 of the DGCL or any amendment thereto or successor provision thereto or (iv) for any transaction from which the director shall have derived an improper personal benefit. Neither amendment nor repeal of this paragraph (a) nor the adoption of any provision of this Certificate of Incorporation inconsistent with this paragraph (a) shall eliminate or reduce the effect of this paragraph (a) in respect of any matter occurring, or any cause of action, suit or claim that, but for this paragraph (a) of this Article Eighth, would accrue or arise, prior to such amendment, repeal or adoption of an inconsistent provision.

(b) The Corporation shall indemnify any director or officer of the Corporation who was or is a party or is threatened to be made a party to, or testifies in, any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative in nature, by reason of the fact that such person is or was a director or officer of the Corporation, or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, employee benefit plan, trust or other enterprise, against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or proceeding to the full extent permitted by law, and the Corporation may adopt bylaws or enter into agreements with any such person for the purpose of providing for such indemnification.

(c) The Corporation may indemnify any person who was or is a party or is threatened to be made a party to, or testifies in, any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative in nature, by reason of the fact that such person is or was an employee or agent of the Corporation, or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, employee benefit plan, trust or other enterprise, against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or proceeding to the full extent permitted by law, and the Corporation may adopt bylaws or enter into agreements with any such person for the purpose of providing for such indemnification.

(d) The Corporation hereby acknowledges that the directors (the “Directors”) that are employees of Centerbridge Capital Partners II, L.P. or one of its affiliates (together, “Centerbridge”) have certain rights to indemnification, advancement of expenses and/or insurance provided by Centerbridge and certain affiliates that, directly or indirectly, (i) are controlled by, (ii) control or (iii) are under common control with, Centerbridge (collectively, the “Fund Indemnitors”). The Corporation hereby agrees (i) that it is the indemnitor of first resort (i.e., its obligations to the Directors are primary and any obligation of the Fund Indemnitors to advance expenses or to provide indemnification for the same expenses or liabilities incurred by the Directors are secondary), (ii) that it shall be required to advance the full amount of expenses incurred by the Directors and shall be liable for the full amount of all expenses, judgments, penalties, fines and amounts paid in settlement to the extent legally permitted and as required by the terms of this paragraph and the bylaws of the Corporation from time to time (or any other agreement between the Corporation and the Directors), without regard to any rights the Directors may have against the Fund Indemnitors, and (iii) that it irrevocably waives, relinquishes and releases the Fund Indemnitors from any and all claims against the Fund Indemnitors for contribution, subrogation or any other recovery of any kind in respect thereof. The Corporation further agrees that no advancement or payment by the Fund Indemnitors on behalf of the

Directors with respect to any claim for which the Directors have sought indemnification from the Corporation shall affect the foregoing and the Fund Indemnitors shall have a right of contribution and/or be subrogated to the extent of such advancement or payment to all of the rights of recovery of the Directors against the Corporation. The Corporation and the Directors agree that the Fund Indemnitors are express third party beneficiaries of the terms of this paragraph (d).

NINTH: The Corporation expressly elects not to be governed by Section 203 of the DGCL.

TENTH: To the fullest extent permitted by Section 122(17) of the DGCL, the Corporation hereby renounces any interest or expectancy of the Corporation in, or in being offered an opportunity to participate in, any business opportunities that are presented to one or more of its officers, directors or stockholders, other than those officers, directors or stockholders who are employees of the Corporation or its subsidiaries. No amendment or repeal of this Article Tenth shall apply to or have any effect on the liability or alleged liability of any officer, director or stockholder of the Corporation for or with respect to any opportunities of which such officer, director or stockholder becomes aware prior to such amendment or repeal.