Embodiments of the present invention disclose a terminal device, including: an obtaining unit, configured to: when a user terminal UE needs to perform D2D communication, obtain a quantity of available D2D resources in a D2D resource pool including at least one D2D resource; a determining unit, configured to determine whether the quantity of available D2D resources is less than or equal to a preset threshold; and a responding unit, configured to, when the quantity of available D2D resources is less than or equal to the preset threshold, respond to a report instruction broadcast by a base station and return response information, so that the base station manages the D2D resource pool according to the response information.