The professional ethics that a supervision engineer should possess are: (1) to safeguard national honor and interests, and to practice according to the principle of "abiding by the law, being honest, being fair and scientific". (2) To carry out the laws, regulations, standards and systems related to construction projects, and fulfill the obligations and responsibilities stipulated in the entrusted supervision contract of construction projects. (3) Study hard on professional technology and engineering supervision knowledge, and constantly improve business ability to meet the needs of engineering construction and development. (4) Do not undertake supervision business in the name of an individual. (five) shall not be registered in two or more supervision units at the same time to engage in supervision activities, and shall not be part-time in the fields of government and construction, production, material and equipment supply. (6) No contractor, building components, equipment, materials and construction methods shall be designated for the supervision project. (7) Do not accept any gift money from the supervised unit. (8) Do not disclose matters that all parties to the supervised project think need to be kept confidential. (9) Adhere to independent work. The work disciplines that the supervision engineer should abide by are as follows: (1) Abide by national laws and relevant government regulations, rules and measures. (2) Seriously fulfill the obligations promised in the project construction supervision contract and assume the agreed responsibilities. (3) Adhere to a just position and handle disputes fairly. (4) Adhere to the scientific attitude and the principle of seeking truth from facts. (5) While providing technical services to the project legal person according to the entrustment supervision contract, help the supervised person to complete its construction tasks. (6) Do not damage the reputation of others. (7) Do not disclose the matters that need to be kept secret in the supervised project. (8) Do not hold concurrent positions in any contractor or material supplier. (9) Do not accept the extra allowance of the project legal person and any allowance of the supervised unit without authorization, and do not accept any unjust enrichment that affects the impartial and independent status of the supervisor.