Abstract: Deng Xiaoping's spirit has a rich and deep meaning, which is infiltrated into Deng Xiaoping's thought, revealed in Deng's actual deeds, and embodied in Deng's speech and works. It is a main reason that makes Deng Xiaoping a great man of centuries and leads to the establishment of Deng Xiaoping's theory. Deng Xiaoping's spirit includes Deng Xiaoping's practical-minded spirit, dialectical spirit, selfless spirit, creative spirit, ideal spirit and patriotism spirit. There is a main clue penetrated in Deng Xiaoping's spirit, which is also the soul of Deng Xiaoping's Spirit——the spirit of seeking truth from facts.