The invention provides a dental implant system and a navigation method thereof. The system includes a multi-axis robot arm, and a dental implant device is connected to an active end thereof; and at least one optical device is coupled to the multi-axis robot arm. In order to capture real-time image information of one of the to-be-implanted parts to be implanted during the dental implantation process; wherein the multi-axis robotic arm is associated with one of the real-time image information according to a pre-implant plan Driving the dental implant device to follow a set path on the site to be implanted; wherein the pre-implant planning is associated with a three-dimensional model of the site to be implanted and includes a setting associated with the set path The entry point, at least one set relay point and one set target point, the three-dimensional model is constructed from a pre-implantation image information of the site to be implanted.本發明提供一種植牙系統及其導航方法,該系統包括一多軸向機器手臂,於其一作用端處係連結一植牙裝置;以及至少一光學裝置,耦接於該多軸向機器手臂,以於植牙過程中擷取一待植牙者之一待植牙部位的一即時影像資訊;其中,該多軸向機器手臂係根據一植牙前規劃與該即時影像資訊之一關聯結果,驅動該植牙裝置於該待植牙部位上依一設定路徑作動;其中,該植牙前規劃係與該待植牙部位的一三維模型相關聯,並且包含與該設定路徑關聯之一設定進入點、至少一設定中繼點和一設定目標點,該三維模型係自該待植牙部位的一植牙前影像資訊建構而成。