The name of the issuer is China Information Security Technology, Inc., a Nevada corporation (the "Company"), which has its principal executive offices at 21st Floor, Everbright Bank Building, Zhuzilin, Futian District, Shenzhen, Guangdong, 518040, People’s Republic of China. This statement relates to the Company’s common stock, $0.01 par value per share (the "Common Stock").

(a)-(f). This Schedule 13D/A is being filed by Mr. Jiang Huai Lin, a citizen of the People’s Republic of China (the "Reporting Person"). The principal address of the Reporting Person is 21^st Floor, Everbright Bank Building, Zhuzilin, Futian District, Shenzhen, Guangdong, 518040, People’s Republic of China. The Reporting Person is Chairman, President and Chief Executive Officer of the Company. The Reporting Person is also the 100% owner of Total Device Management Limited, a company formed in the British Virgin Islands, with its principal executive offices at 3505-06, 35/F Edinburg Tower, The Landmark, 15 Queen’s Road Central, Hong Kong.

During the last five years, the Reporting Person has not been (A) convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or (B) a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, Federal or State securities laws or finding any violation with respect to such laws.

Prior to July 1, 2008, the Reporting Person was deemed to beneficially hold an aggregate of 23,277,935 shares of the Company’s common stock. Such 23,277,935 shares consisted of 20,677,935 shares of Common Stock owned directly by the Reporting Person and 2,600,000 shares held by Total Device Management Limited, an entity controlled by the Reporting Person.

On July 1, 2008, the Reporting Person transferred 1,527,855 shares of the Company’s Common Stock held directly by him to Mr. Jin Zhu Cai ("Mr. Cai"), at a price of $5.708 per share, pursuant to the terms and conditions of an equity transfer agreement, dated July 1, 2008, by and among the Reporting Person and Mr. Cai (the "Equity Transfer Agreement"). The foregoing description of the Equity Transfer Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of that agreement, which is filed as Exhibit 10.2 to the Current Report on Form 8-K filed by the Company on July 3, 2008.

Following the sale on July 1, 2008, the Reporting Person holds 19,150,080 shares of the Company’s Common Stock directly and 2,600,000 shares of the Company’s Common Stock indirectly through Total Device Management Limited.

As a condition to the closing of a securities purchase agreement, dated January 16, 2007, among the Company and two accredited investors, on January 31, 2007, the Reporting Person pledged to transfer to the investors up to 7,894,736 shares of Common Stock owned by him if the Company does not achieve certain economic milestones for each of its 2007 and 2008 fiscal years (the "Make Good"). The Company has met the economic milestone for 2007 and so one half of the Make Good shares were released to the Reporting Person. The remaining half of the shares remain subject to the Company’s achieving the 2008 milestone. For more details regarding the Lockup Agreement and the Make Good see the Current Report on Form 8-K filed by the Company on February 1, 2007.

The Reporting Person acquired the Common Stock pursuant to the Purchase Agreement as described in Item 3 above. The Reporting Person holds the securities directly and indirectly through Total Device Management Limited solely for investment purposes. The Reporting Person has no intention other than to hold the shares for investment and/or sell the shares, as permitted by law.

Except as set forth in this Schedule 13D, the Reporting Person has made no proposals, and has entered into no agreements, which would be related to or would result in any of the events or matters described in part (a) through (j) of Item 4 of Schedule 13D.

(a)     As of the date of this statement, the Reporting Person is the beneficial owner of 21,750,080 shares of the Common Stock, representing 46.5% of the outstanding shares of the Common Stock. The Reporting Person does not own any other securities of the Company.

(b)     The Reporting Person has the sole power to vote and dispose of 21,750,080 shares.

(d)     Other than the Reporting Person, no other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the Reporting Persons’ securities.

(e)     Not applicable.

Except as disclosed herein and in the Current Report on Form 8-K filed by the Company on February 1, 2007, there are no contracts, arrangements, understandings or relationships (legal or otherwise) among the Reporting Person and any other person with respect to any securities of the Company, including, but not limited to transfer or voting of any of the securities, finder’s fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding of proxies.