The invention discloses a vehicular multi-mode electrohydraulic steering control method, comprising the steps of 1, acquiring a steering mode that is set; 2, judging whether the steering mode is a rear axle locking mode; if yes, executing step 3; if not, executing step 4; 3, controlling a rear steering axle to align and lock, and backing to step 1; 4, detecting state of the rear steering axle; 5, judging whether the rear steering axle is aligned and locked; if yes, executing step 6; if not, executing step 7; 6, when it is detected that a front steering axle steers and a turn angle of the front steering axle is within a first preset range for the first time, unlocking the rear steering axle, allowing the same to follow the front steering axle to steer, and backing to step 1; 7, allowing the rear steering axle to steer with the front steering axle, and backing to step 1. The vehicular multi-mode electrohydraulic steering control method has the advantages that the adaptability of a multi-axle vehicle to different conditions can be effectively improved, driving safety and operating stability for steering at high speed are improved, and trafficability at low speed is also considered.