Car door lock

The utility model provides a car door lock. The lock comprises a fixed plate, an inward handle pull rod, an inward locking pull rod, an outward handle pull rod, an outward locking pull rod, an opening mechanism and a locking mechanism, wherein the inward handle pull rod and the outward handle pull rod are connected with the opening mechanism; the inward locking pull rod and the outward locking pull rod are connected with the locking mechanism; the opening mechanism and the locking mechanism are installed on the fixed plate; the outward handle pull rod is axially provided with a linear elongated slot; the opening mechanism is embedded into the linear elongated slot in a slideable manner via a connecting piece; and the linear part of the linear elongated slot is divided into a first part and a second part, which have different widths. The car door lock has the following beneficial effects that: the abnormal sound of the car door lock during travelling is greatly reduced by changing the way of connecting the opening device and the outward handle pull rod; and the car door lock has ingenious structural design, beautiful appearance and low production cost, fully utilizes space, is convenient to operate and greatly improves the use comfort level.