The party should adopt more comprehensive criteria for assessing the performance of its officials other than judging them from GDP numbers, Xi, also general secretary of the CPC told a meeting on the eve of the 92nd founding anniversary of the party which has ruled the country since 1949.
The party should consider a local official's work in various aspects including people's livelihood, the development of local society and the quality of environment, Xi said.
China, the world's second-largest economy, needs growth of about 7 per cent to achieve CPC's target of doubling per capita GDP by 2020 from the level in 2010.
When promoting officials, the CPC should consider integrity as a priority and then capability, state-run Xinhua news agency quoted Xi as saying at the meeting.
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"The party's cadres should be firm followers of Communist ideals, true believers of Marxism and devoted fighters for the socialism with Chinese characteristics," he said.
To select and promote good officials, the party needs an efficient and reasonable system, Xi said.
Observers say 60-year-old Xi, who holds the most powerful post of General Secretary of the party, head of the military and the Presidency, has emerged as the most powerful leader in China after Mao Zedong and Deng Xiaoping, two leaders who shaped the party and China in the last six decades.
The President also stressed on training and promotion of young party officials and pledged that more opportunities will be offered to young promising candidates.
Xi urged punishing disciplinary violations and corruption during official selection procedures.
Buying and selling official positions as well as canvassing must be punished without any appeasement, said Xi, who took power in March after a once-in-a-decade leadership change in China, succeeding Hu Jintao.