Abstract: A sun shield for automobile comprises a top, windshield, front, left, right and rear sunshade portions, and completely blocks the sun rays that shine to the automobile from different directions. The top sunshade portion is supported by two X deposed steel wires which straighten the top of the top sunshade portion without drooping. The spacers keep the top of the sunshade portion apart from the top of the automobile to establish a ventilating space which stops the transmittal and radiation of the sun heat. The sun shield is convenient in folding and extending.