Intelligent virtual environment (IVE) combines virtual reality and artificial intelligence (A I), i.e. It incorporates AI technology into virtual environment, which makes the virtual environment more interactive and credible. Using IVE concept, we design and implement an entertainment IVE application platform with intelligent agents and neural networks. The humanlike intelligent objects in the virtual environment are implemented with intelligent agents, which are endowed with intelligence for self-learning and collaborating with each other by applying BP and ESP neural network to the agent controllers.