The invention relates to an intelligent community access control system with an adjustment function and capable of preventing checking omission. The system includes a door frame, a central plate and two monitoring units, the two sides of the central plate are provided with intercepting mechanisms, each intercepting mechanism includes a retractable assembly and two intercepting assemblies, each intercepting assembly comprises a driving unit, a lifting unit and an access control rod, and each retractable unit includes an air pump, an air cylinder, two pistons and two connection units. Accordingto the intelligent community access control system with the adjustment function and capable of preventing the checking omission, through the intercepting mechanisms, vehicle intercepting can be achieved, more convenience is provided for safety check, and when vehicles are allowed to pass, the intercepting mechanisms let the vehicles allowed to pass go at first and then allow following vehicles toenter the door frame for check; in this way, the function of checking vehicles one by one can be achieved, the checking omission can be avoided, and therefore the safety of the access control system is improved; moreover, through the retractable assemblies, the distance of the intercepting assemblies can be flexibly adjusted according to the length of each vehicle to achieve safety check of different types of vehicles, and the practicability is improved.