A multi-functional burglar-proof lockset assembly structure is composed at least of a lockset, a burglar-proof alarm circuit, and a communication module. The lockset body can be locked on a steering wheel to restrict rotation, and at a same time when the lockset is locked, the burglar-proof alarm circuit in the lockset, a detection end and a vibration sensor are activated, to detect a possible condition when a car is stolen, such as a change of atmospheric pressure, a movement of object, masking or interruption to an ultrasonic signal, fracturing to a glass, or abnormal vibration. In addition, an output signal is transmitted to a central processing unit for discrimination, and when a burglar-proof alert message is created, the burglar-proof alarm circuit can notify a user the burglar-proof alert message, thereby achieving effects of burglar-proofing with multiple alerts, and ultrasonic signal prevention and detection.
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