The invention discloses a multiple plug for a burglary-proof door, and relates to the field of plug protecting devices. The multiple plug solves the problem that a present plug for the doors does not have a burglary-proof function so as to cause the problem of potential hazards of properties and personnel safety. The multiple plug for the burglary-proof door is provided with a plug shell, a spring, blank plugs and an inner plug body; the periphery of the opening end of the plug shell is provided with a circle-shaped limiting edge; the middle part of the plug shell is provided with more than three blank plug holes at intervals corresponding to the blank plugs; a spring hole for containing the spring is formed in the middle part of the inner end of the plug inner body; the periphery of the inner end of the inner plug body is provided with a circle-shaped limiting baffle plate; a cone-shaped ladder with a cone-shaped axial section and a groove with a rectangular axial section are formed between a platform and the limiting baffle plate in sequence. The multiple plug is simple in structure, convenient to operate and easy to mount, and can effectively prevent a crowbar from prizing up door plates and door frames.