Abstract: The present invention discloses a business operation mode based on artificial-intelligence+legal-affairs+business-affairs. AI is the empowerment, legal-affairs' main-body, business-affairs' framework. AI characteristics lie-in two-learning or two-experts, including Internet-of-human, Internet-of-things, Internet-of-intelligence; applying AI computer-program to control or improve business-quality. AI+legal-affairs innovation lies-in new-brain or new-procedures, using contract to authorize AI's basic-role in judicial-affairs. Identification or adjudication is made by deep-learning and reinforcement-learning, both priorities accept. Experts separately verify evidence or fact, video-trial, mediate then arbitrate. Expert-database complements expert-system each-other, explains algorithm, and promotes reconciliation. Financial-experts control credit-limit and perform-contract through guarantee insurance.