Veterinary anti-freezing negative-pressure blood collection tube

The utility model discloses a veterinary anti-coagulation negative-pressure blood collection tube, comprising a tube body (1) and a tube opening plug corked at the opening of the tube body, wherein the cavity of the tube body is a negative-pressure vacuum cavity (2); anticoagulant is arranged in the negative-pressure vacuum cavity; the middle part of the top face of the tube opening plug is provided with a counterpoint cavity (3) through which a needle head is aligned to be pierced into the negative-pressure vacuum cavity. Compared with the prior art, the tube has the advantages that the blood collection operation is simpler; the process of preparing a blood specimen can be simplified greatly; moreover, a whole blood specimen more precise in anticoagulant proportion can be prepared; the blood collection amount and the anticoagulant can be precisely proportioned in favour of an experimental result; meanwhile, the probability that medical workers suffer hematogenous infection can be lowered; the specimen can be favourably transported and stored; therefore the original properties of the specimen are kept better.