Throttle body and air intake equipment for internal combustion engine

The invention relates to a throttle body and an intake system for an internal combustion engine that can be assembled more easily. A throttle body (1) for an internal combustion engine comprising an airflow sensor (7) for measuring the flow rate of air passing through a throttle bore, a throttle position sensor (9b) for measuring the opening of a throttle valve (6) in the throttle bore, and an engine control unit for controlling the engine, wherein an electronic circuit which is said engine control unit is secured to a base (3) which is any other member than the body containing the throttle bore. The base (3) has pins which are electrically connected to at least any of a motor (15) for driving the throttle valve (6), the airflow sensor (7), and the throttle position sensor (9b).