Artificial intelligence is a field of computer science. It is a new science and technology to study and develop the theory to simulate, extend and expand human intelligence. The construction of urban intelligent community sports facilities has been gradually carried out. This paper discusses C4.5 and ID3, two artificial intelligence decision tree network classification algorithms. After repeating 10 experiments, it is found that the calculation speed of the C4.5 algorithm is about 186% of that of ID3. Compared with ID3, the overfitting degree of C4.5 is about 34%. Decision tree C4.5 algorithm has certain advantages over ID3.