The invention discloses a novel automatic contracting brick clamping machine and relates to the field of machines. The brick clamping machine comprises a contracting sliding rail mechanism 1, contracting guide rails 2 and a movable combined brick clamp 3. The contracting sliding rail mechanism 1 comprises fixed chain guide wheels 5, sliding blocks 6, sliding rails 7 and chains 9. The chain guide wheels 8 are fixed to a rack through chain fixing ends 4. The chains 9 form closed chain transmission with 3-4 chain guide wheels such as the fixed chain guide wheels 5 and the chain wheel guide wheels (8), and the movable combined brick clamp 3 are driven by the sliding blocks 6 and the sliding rails 7 to stretch and contract. According to the novel automatic contracting brick clamping machine, the number of clamped and put bricks is large, loading and unloading are flexible, ash and dust are prevented, the use range is wide, and the carrying efficiency of the bricks is greatly improved.