The invention relates to a column ball lock assembly with double lock heads, which is used for controlling a lock tongue. The column ball lock assembly with double lock heads comprises a rear lock parThe invention relates to a column ball lock assembly with double lock heads, which is used for controlling a lock tongue. The column ball lock assembly with double lock heads comprises a rear lock part, a front lock part, a square tube and a safety lever sleeve; the front lock part is connected with the rear lock part by the square tube; both the front lock part and the rear lock part are respectit, a front lock part, a square tube and a safety lever sleeve; the front lock part is connected with the rear lock part by the square tube; both the front lock part and the rear lock part are respectively provided with a lock head; the front lock part comprises a front handle, the front lock head, a front tube, a front tube plate, a front shielding cover, a front safety lever, a clutch piece and avely provided with a lock head; the front lock part comprises a front handle, the front lock head, a front tube, a front tube plate, a front shielding cover, a front safety lever, a clutch piece and asafety clamp; the safety clamp can be engage and disengaged with the front shielding cover under the control of a key, so that the front handle, the front tube and the front tube plate which are link safety clamp; the safety clamp can be engage and disengaged with the front shielding cover under the control of a key, so that the front handle, the front tube and the front tube plate which are linked to rotate can rotate or cannot rotate relative to the front shielding cover, thus the ball lock assembly can be locked and unlocked. When unlocked, a door lock with the ball lock assembly can be used to rotate can rotate or cannot rotate relative to the front shielding cover, thus the ball lock assembly can be locked and unlocked. When unlocked, a door lock with the ball lock assembly can be used as a passage lock which can be unlocked through rotating the front handle and a rear handle, but when the door lock is locked, a thief breaking into a room from a window or other places besides theed as a passage lock which can be unlocked through rotating the front handle and a rear handle, but when the door lock is locked, a thief breaking into a room from a window or other places besides thedoor of the room can not go out from the door of room, thus the possibility of the loss of valuables and money can be greatly reduced. door of the room can not go out from the door of room, thus the possibility of the loss of valuables and money can be greatly reduced.