The　zirconia　(ZrO2)　ceramic　dental　implant　abutment　was　prepared　by　DLP　(Digital　Light　Processing)　3D　printing　technology.　The　effect　of　different　heat　treatment　parameters　on　the　sintering　quality　of　ZrO2　was　studied.　According　to　TG-DSC,　XRD,　Raman,　SEM　and　other　characterization　methods,　it　could　be　determined　that　best　sintering　parameter　was　set　at　1450　degrees　C　for　1.5　h.　The　final　product　has　a　good　morphology　without　holes　and　other　defects,　and　the　relative　density　is　99.48%.　The　ZrO2　samples　printed　in　different　directions　have　obvious　anisotropy.　The　three-point　bending　strength　of　the　sample　in　the　horizontal　direction　is　better　than　that　in　the　vertical　direction,　and　the　strength　is　600　MPa.　The　fatigue　load　simulation　results　show　that　the　smaller　the　pre　angle　is,　the　smaller　the　maximum　stress　is　and　the　higher　the　safety　factor　is.