The invention discloses a dental implant device with high biocompatibility. The dental implant device comprises an implant body and a retention base which are integrally formed, the retention base is a tantalum part, and the implant body is made of a pure titanium material; the bottom of the implant body is shaped like a smooth cone, the outer surface of the implant body is provided with multiple grooves, and the grooves are symmetrically distributed by taking the central axis of the implant body as an axis. According to the dental implant device with the high biocompatibility, the retention base is the tantalum part, and the implant body is made of the pure titanium material; due to the fact that the pure titanium material and the tantalum part have good biological activity, the dental implant structure and alveolar bone tissue have good biocompatibility.