The invention discloses an intelligent vehicle planning capacity testing platform, which comprises a disk, a planning capacity testing system and an intelligent vehicle to be tested, and is characterized in that the disk is used for storing sample data, task files, reference answers, scoring rules and test results; the planning capacity testing system is a software system which performs a test on the planning capacity of the intelligent vehicle, and is mainly composed by the following three parts: a test question database, test process visualization and a test result and quantitative evaluation method; and the intelligent vehicle to be tested comprises a planning and decision-making unit, a control unit and a vehicle-mounted execution mechanism, and the intelligent vehicle to be tested performs communication with the planning capacity testing system through a network interface. The vehicle-environment closed-loop system based semi-physical simulation testing platform provided by the invention enables the planning capacity of an intelligent vehicle to be tested safely and effectively in a controllable space with experiment conditions being variable and easy to repeat at a relatively moderate cost.