The invention relates to a material transfer conveying device for constructing automatic production line. The material transfer conveying device comprises a base, a front leading port, a rear leadingport, a guiding plate and a transfer table, wherein a lifting drive device is arranged at the top of the base, a drive shaft of the lifting drive device is connected with the bottom of the transfer table, and a butt joint notch is formed in the left end of the transfer table; and an adjusting air cylinder and an electric screw rod assembly are arranged on each of two sides of the transfer table, and a clamp part is detachably connected onto an air cylinder shaft of each adjusting air cylinder. According to the material transfer conveying device, the guiding plate guides a material of front equipment to reach the transfer table, the material is subjected to position adjusting and correcting on the transfer table, then the transfer table is lifted to correspond to the rear leading port, thematerial is transferred to rear equipment in a fixed state, accurate and order processing for the material is conveniently performed in the rear equipment, meanwhile, automatic circulation of the material is realized, and production efficiency and production quality of the automatic production line are effectively improved.