The present disclosure discloses a method for determining a movement trajectory of a mock object performed at a computing device. The computing device performs the following operations: determining, by the computing device, an action effect of an object instruction of a first mock object acting on a second mock object; obtaining, by the computing device from a preset trajectory template set, a trajectory template corresponding to the action effect; obtaining, by the computing device, information about a staging environment in which the second mock object is located; determining, by the computing device, a movement trajectory of the second mock object according to the information about the staging environment and the trajectory template; and dynamically rendering, by the computing device, the second mock object along the movement trajectory.