The utility model discloses an automobile assistant instrument panel small table board assembly which comprises a small table board body with an installation face. The automobile assistant instrument panel small table board assembly further comprises a small table board installation support formed by a clamping connection framework and a plurality of installation supporting feet. The installation face is provided with clamping bases for being connected with the clamping connection framework in a clamping mode. Each clamping base comprises a fixed rib board and clamping ribs. The installation supporting feet are respectively connected with the clamping connection framework. The automobile assistant instrument panel small table board assembly is simple in structure and convenient to install. The small table board installation support and the clamping bases are additionally arranged so that the small table board body can be independently and conveniently installed. The shape of the small table board installation support and the metal-plate connection fixing position of the small table board installation support and an automobile body can be arranged according to the requirements. The installation arrangement requirements of a remodeled automobile can be met by changing the fixing positions of the installation supporting feet on the small table board support and the shapes of the installation supporting feet, and therefore common use of parts of automobiles with different configurations is achieved.