A shielded room monitoring system based on electromagnetic compatibility comprises a pick-up head, a computer connected with the pick-up head, a stabilized power supply supplying power to the pick-up head and a shielding cooper box body. The pick-up head is arranged inside the shielding copper box body. The shielding copper box body comprises a copper box body with an open front and a front cover arranged on the open part of the copper box body. A chamber is arranged inside the front cover. A piece of electromagnetic shielding glass is arranged inside the chamber. The front cover is provided with an open hole for the pick-up head to shoot. The shielding copper box body and the electromagnetic shielding glass are adopted for performing electromagnetic shielding processing on the pick-up head. Meanwhile, the electromagnetic shielding glass allows light transmission. The pick-up head is thus enabled to have a monitoring function. The monitoring system is especially suitably used in a medical monitoring room.