Abstract:An agent-oriented programming language with intention driver is proposed, which is called AOPLID. Based on open situation calculus, AOPLID can be regarded as an improvement of GOLOG that is based on situation calculus. AOPLID can formalize some elements of the agent’s mental state, namely belief, intention, capability and strategy. A belief revision operator is introduced in AOPLID to deal with the communication and exogenous events. AOPLID solves the problems GOLOG faces, such as inconvenience of describing the agent’s mental state, lack of communication. The syntax of the AOPLID and its semantic under the OSC are presented. An example program of AOPLID that describes the coffee machine is given too.