Recently, a capsule endoscope has been developed to observe images from the inside of intestines. Such a capsule endoscope does not have locomotion or hold method. To get proper diagnosis and medication, it is necessary to control the capsule from outside to guide locomotion. In this paper, the electrical stimulus capsule is implemented which has feasibility to hold itself in the small intestine. To verify the mechanism, in-vitro experiments were performed four times. The capsule was successfully stopped in the small intestines, and the maximum stop friction forces were measured at various electrical stimulus parameters. The maximum stop friction was 55.5(±9.77) gram which is the excessive friction to hold the capsule. Also, the moderated maximum stop friction (18.7(±4.6) gram) was measured when changed stimulus parameters. In addition, linear increase of the friction was measured while the voltage increased linearly; which means the capsule can increase friction linearly. the holding or attaching capsules are barely designed. One of attaching method is using suction (BRAVO, Sandhill Scientific) [4]. Once the doctor inserts the capsule, the doctor applies suction by a connected catheter. After the capsule has located at target position, the doctor removes the catheter. However, the capsule needs the catheter for suction, so the surgical operation is limited to the esophagus. There are similar capsules which are made by Dario et al [5-6]. It has suction pump inside the capsule which can be used for locomotion and stop mechanisms. However the pump consumes too much power and requires large dimension. Another method is using frictional material. But it has trouble within the intestine, because the friction coefficient of intestine is as low as 10^-3 [7-8]. To overcome such difficulties, we have selected an electrical stimulus method. The electrical stimulus has been reported about medical treatment, and it can be locomotive mechanism in the small intestine [9-12]. In this paper, an electrical stimulus capsule is implemented to determine whether the stimulus can be a holding mechanism in the small intestine. The capsule has wires which are connected to a electrical stimulator and a force sensor. To test the capsule, in-vitro experiments are performed, and verify that the electrical stimulus has a feasibility to maintain the capsule in the small intestine.