A medical antibacterial full-flat touch screen comprises an antibacterial housing, an antibacterial rubber strip and an antibacterial full-flat panel, wherein a recessed edge is configured around the periphery at the bottom of the antibacterial rubber strip which recessed edge encompassing the periphery of the antibacterial full-flat panel, and a plurality of upright buckle holes are configured on the inner side of the periphery of the antibacterial full-flat panel. In addition, a groove is configured around the periphery at the top of the antibacterial rubber strip such that the antibacterial housing can be directly inserted into the groove, and a plurality of bumps configured on the inner side of the antibacterial housing can be positioned into the upright buckle holes thereby allowing the antibacterial housing and the antibacterial full-flat panel to combine together. Furthermore, the antibacterial rubber strip closely joined between the antibacterial housing and the antibacterial full-flat panel can effectively prevent the breeding of bacteria inside the gap of the assembled body and the infiltration of any liquid into the body as well.