The invention discloses a blood drawing device, which comprises a test tube clamp part which clamps a blood-containing test tube, a blood lancet head clamp component which clamps a blood lancet head to move so as to insert into the test tube, and a drive component which fixes the test tube clamp part, and drives the test tube clamp part to clamp the test tube to move so as to shake the blood in the test tube. In addition, the invention also discloses an automatic blood drawing system. The device has the advantages of simple structure, practicability and easy operation; moreover, the device achieves blood drawing and blood shaking at the same time.