Sharif, who arrived here today, has opted to visit China for his maiden official foreign trip since assuming office in June as he struggles to address Pakistan's crippling energy crisis and revive its ailing economy.
Sharif is accompanied by a 11-member high-level delegation that include senior ministers, Punjab and Balochistan Chief Ministers and top officials.
China's restive Xinjiang province bordering PoK was rocked by violence recently, claiming the lives of 35 people.
Chinese official media highlighted Syrian government's allegations that Uygur militants recruited by ETIM, an affiliate of Al-Qaeda were being trained in Pakistan to fight to oust Assad government in Syria.
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One trained militant was caught in Xinjiang few days ago.
"The recent resurgence of attacks in Pakistan and Xijiang province probably related to the uncertainty in Afghanistan which gives greater reason for China and Pakistan to cooperate more closely to deal with common threat of terrorism," current affairs commentator Victor Gao Zhikai, told the state run CCTV here today.
Answering a question on the issue, Chinese Foreign Ministry spokesperson Hua Chunying said, "Regarding security situation in Pakistan, we know that Pakistan has made huge and hard efforts to fight terrorism, to maintain national security."
"We believe that the international community should help Pakistan overcome difficulties and meet challenges," she said.