6-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2011

Commission File Number: 001-33195

TRINA SOLAR LIMITED

No. 2 Tian He Road
Electronics Park, New District
Changzhou, Jiangsu 213031
People’s Republic of China
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F þ            Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

TRINA SOLAR LIMITED

By: /s/ Terry Wang                     
Name: Terry Wang
Title: Chief Financial Officer
Date: September 14, 2011

Exhibit Index

Exhibit 99.1 — Press Release

EX-99.1

Exhibit 99.1

Trina Solar Holds Annual General Meeting of Shareholders

Changzhou, China — September 14, 2011 — Trina Solar Limited (TSL) (“Trina Solar” or the “Company”), a leading integrated manufacturer of solar photovoltaic products from the production of ingots, wafers and cells to the assembly of PV modules, announced today that it held its 2011 Annual General Meeting of Shareholders on September 13, 2011. Each of the proposals submitted for shareholder approval was approved.

Specifically, the shareholders approved:

1. Re-election of Mr. Junfeng Li as a director of the Company;

2. Re-election of Mr. Liping Qiu as a director of the Company; and

3. Appointment of the Independent Auditor Deloitte Touche Tohmatsu for the fiscal year 2011.

About Trina Solar Limited

Trina Solar Limited (NYSE: TSL) is a leading manufacturer of high quality modules and has a long history as a solar PV pioneer since it was founded in 1997 as a system installation company. Trina Solar is one of the few PV manufacturers that have developed a vertically integrated business model from the production of monocrystalline and multicrystalline ingots, wafers and cells to the assembly of high quality modules. Trina Solar’s products provide reliable and environmentally-friendly electric power for a growing variety of end-user applications worldwide. For further information, please visit Trina Solar’s website at http://www.trinasolar.com. For further information, please contact:

Trina Solar Limited	Brunswick Group
Terry Wang, CFO	Caroline Jinqing Cai
Phone: + (86) 519-8548-2009 (Changzhou)	Phone: + (86) 10-6566-2256
Thomas Young, Senior Director of Investor Relations	Michael Fuchs
Phone: + 1 (408) 459-6706 (San Jose)	Phone: + (86) 10-6566-2256
Email: ir@trinasolar.com	Email: trina@brunswickgroup.com