Abstract: To address the insufficiency of energy by battery for wireless capsule endoscope (WCE), a novel wireless energy supply module which can transmit energy to WCE based on inductive coupling was introduced. For the orientation indetermination of WCE in the human body and the miniature outline of WCE, an appropriate power transmitter and receiver were designed and tailored, and the effect of power transmission by this module was verified by experiments. The result shows that at least 150 mW powers can be transmitted to WCE when the inputting power is 18W and the outline of power receiver is 10 mm×11 mm, which fits the requirement of WCE. Based on this work, a WCE is made out and clear images of pig’s small bowel are gotten in the vitro experiments.