The JF-17s, developed and built jointly by China and Pakistan, will guide the special Air China Boeing 747 aircraft to Nur Khan airbase, where a 21-gun salute will mark Li's arrival, officials said.
The JF-17s will fly past the airbase as Li will be received by President Asif Ali Zardari and caretaker Prime Minister Mir Hazar Khan Khoso, they said.
The visit will focus on "broadening the horizons of multi-faceted ties" between the two countries.
Li's visit is taking place at a time when Pakistan has elected new national and provincial assemblies and the PML-N party is set to form the new government.
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During his stay in Islamabad, Li will hold talks with Zardari and Khoso.
Zardari will host a luncheon for Li to which the leaders of major political parties have been invited.
The Prime Minister will also host a banquet for his Chinese counterpart.
The two countries will also sign several memoranda of understanding for cooperation in different fields.
Li will address the Senate on May 23.