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The embodiments of the present invention provide a method and an apparatus for MIMO downlink transmission control, with a view to taking feedback delay and mobility into account in downlink transmission control, and Support ing intermixing of open loops and closed loops. A MIMO downlink transmission control method provided in an embodiment of the present invention includes: obtaining a channel fading change rate and a feedback delay of a user, calculating out a closed-loop MIMO throughput gain according to the channel fading change rate and the feedback delay; and determining a downlink transmission mode according to the closed-loop MIMO throughput gain, where the downlink transmission mode includes a closed-loop mode or an open loop mode.