EXHIBIT 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT

I, Chien Chih Liu hereby certify that:

(1) I have reviewed this annual report of Rotoblock Corporation;

(2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading
with respect to the period covered by this report;

(3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present
in all material respects the financial condition, results of operations and cash flows of Rotoblock Corporation as of, and
for, the periods presented in this report;

(4) Rotoblock Corporation's other certifying officer(s) and I are responsible for establishing and maintaining disclosure
controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal controls over financial reporting
as defined in Exchange Act Rules 13a-15(f) and 15d-15(f) for Rotoblock Corporation:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed
under our supervision, to ensure that material information relating to Rotoblock Corporation, including its consolidated subsidiaries,
is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to
be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of Rotoblock Corporation's disclosure controls and procedures and presented in this report
our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by
this report based on such evaluation; and

(d) Disclosed in this report any change in Rotoblock Corporation's internal control over financial reporting that occurred
during Rotoblock Corporation's most recent fiscal quarter (Rotoblock Corporation's fourth fiscal quarter in the case of an
annual report) that has materially affected, or is reasonably likely to materially affect, Rotoblock Corporation's internal
control over financial reporting; and

(5) Rotoblock Corporation's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal
control over financial reporting, to Rotoblock Corporation's auditors and the audit committee of Rotoblock Corporation's board
of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial
reporting which are reasonably likely to adversely affect Rotoblock Corporation's ability to record, process, summarize and
report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in Rotoblock
Corporation's internal control over financial reporting.

Dated: July 20, 2011

ROTOBLOCK CORPORATION

/s/ Chien Chih Liu

By: Chien Chih Liu, Chief Executive Officer