Anti-theft mechanism

The invention provides an anti-theft mechanism. The anti-theft mechanism is composed of a containing unit, at least one first triggering unit, an upper cover piece, a first circuit board, a lower cover piece, at least one second triggering unit and a second circuit board on a component, wherein at least one first trigger unit is pressed through the first circuit board, so a first electrical path is formed among the first circuit board, at least one first trigger unit and a main circuit board. Moreover, the accommodating unit surrounds and accommodates at least one main electronic component onthe main circuit board. Through the arrangement, an unauthorized user disassembles the anti-theft mechanism and releases the connection relation between the upper cover piece and the main circuit board, so the first electric circuit is disconnected. At the moment, the anti-theft mechanism starts an anti-theft system to prevent important data of at least one main electronic element from being stolen and tampered. 本发明提供一种防盗