Disclosed is a multifunctional smell recognizing platform. A hole and a hole cover are arranged on an operating platform; a smell recognizing device comprises a fixed block, fixed screws, a fixed cushion block, a fixed pressing block, a cross beam, a movable block, a movable cushion block, a movable pressing block, movable screws, a translational cylinder, a lifting cylinder, a cylinder support and a smell recognizing tank. The fixed pressing block is connected with the fixed cushion block and the fixed block through the fixed screws; the fixed block is connected with the operating platform through the fixed screws; the movable pressing block is connected with the movable block through the movable screws; the movable cushion block is connected with the translational cylinder; the translational cylinder is connected with the operating platform; the cylinder support is connected with the operating platform; the lifting cylinder is connected with the cylinder support; the translational cylinder is connected with an air pump through a translational cylinder air pipe; the lifting cylinder is connected with the air pump through a lifting cylinder air pipe; and the air pump is connected with an electric control device. The multifunctional smell recognizing platform is used for improving the efficiency of smell recognizing training of police dogs, can timely correct mis-action of the police dogs in training, and then the police dogs are intensified in training in time.