"China attaches importance to relations with Cambodia and hopes to deepen and advance the mutually beneficial cooperation to lift bilateral ties," Wu told Sihamoni.
Wu, chairman of China's National People's Congress (NPC) Standing Committee, said China cherished the special friendship with the Cambodian Royal Family.
The friendship nurtured by Chinese leaders and former Cambodian King Norodom Sihanouk had weathered the changing international landscape, said Wu.
Bilateral relations had seen frequent high-level visits, increased political mutual trust, and mutually beneficial trade cooperation and support on international and regional issues, said Wu.
Wu also thanked the king for his support to the Shanghai World Expo and presence at the celebrations of China's National Pavilion Day at the Shanghai World Expo Friday.
Sihamoni said the progress in bilateral relations was in the line with the two peoples' aspirations and the Cambodian Royal Family was committed to boosting bilateral cooperation.