Exhibit 15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (File No. 333-233721) and in the Registration Statement on Form F-3 (File No. 333-248076) of Futu Holdings Limited of our report dated April 24, 2023 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 20-F.

/s/ PricewaterhouseCoopers Zhong Tian LLP

Shenzhen, the People’s Republic of China

April 24, 2023