The invention discloses a CZ-2 strain which is separated and screened from the soil of a drainage ditch of a diary farm and can produce acrylic acid, the CZ-2 strain is collected in China Center for Type Culture Collection with the collection number of CCTCC No. M209039, young bacteria of the strain are shaped like slender irregular rods, and old bacteria are shaped like spheres; the CZ-2 strain is gram-positive, not acid-resistant and facultative anaerobic and does not produce spores; and the CZ-2 strain is a raised yellow bacterial colony on peptone-yeast extract agar, the strain belongs tocellulosimicrobium cellulans through analysis and identification of morphological, physiological and biochemical characteristics, as well as a rDNA sequence, the yield of the laboratory-prepared acrylic acid can achieve 5mmol/L, and the application prospect is broad.