PURPOSE: An apparatus and a method for forming an interior material for a car are provided to reduce frictional resistance when an upper mold is slid by forming a lubricating plate on the side surface of the upper mold and an oil groove on the bottom surface of the upper mold. CONSTITUTION: An apparatus for forming an interior material for a car comprises upper and lower molds(10,21), a longitudinally moving cylinder(15), and an injector. The upper mold has first and second cavities(11,12). A resin for a base material is injected into the first cavity. A resin for a surface material is injected into the second cavity. The upper mold is installed on a fixed frame(14). The lower mold has first and second injection passages(23,24) connected to the first and second cavities. The longitudinally moving cylinder is installed on the fixed frame and longitudinally moves the upper mold. The injector injects the resins for base and surface materials through the first and second injection passages and integrally injection-molds the surface material on the base material.