An automobile tire anti-skid chain includes lateral chains, one or more longitudinal chains, two tightening side chains and connecting parts. The longitudinal chain has an anti-skid blocks combination and a single anti-skid block in longitudinal alternate series connection. The lateral chain has an anti-skid blocks combination and a single anti-skid block connected in horizontal alternate series. The longitudinal and lateral chains cross and are connected. The single anti-skid block at the intersection is replaced by a connecting part. Ends of the lateral chain are linked to one tightening side chain through the connecting part. A detachable connection device is provided on the tightening side chain, through which the tightening side chain could be jointed into a closed loop. The anti-skid blocks combination has two abreast anti-skid blocks. Part of a single anti-skid block is sandwiched between and hinged with the two abreast anti-skid blocks.