The invention relates to a rubber fixing block composition used for automobile hose limiting. The rubber fixing block consists of the following components in parts by weight: 60-80 parts of butadiene styrene rubber, 80-100 parts of ethylene propylene diene monomer rubber reclaimed rubber, 2-5 parts of zinc oxide, 1-2.0 parts of stearic acid, 2-3 parts of coumarone, 1-2.0 parts of 2,2,4-trimethyl-1,2-dihydroquinoline, 0.2-1 part of N,N-di(beta-naphthyl)ursol, 50-70 parts of carbon black N550, 50-70 parts of high wear-resistant N330, 30-50 parts of light calcium, 40-60 parts of naphthenic oil, 0.2-0.5 part of 1,3-melaniline, 1-2.0 part of 2,2'-disulfbenzothiazole, 0.5-1.0 part of tetrakis(diethyldithiocarbamato-S,S')tellurium and 0.5-1.0 part of sulphur. The rubber fixing block composition has the characteristics of good heat resistance, low temperature resistance, abrasion resistance, weather resistance, ozone resistance, cracking resistance and the like.