Novel crystal form of carbapenem antimicrobial medicament and preparation method of novel crystal form

The invention provides a novel crystal form of a carbapenem antimicrobial medicament, namely, (+)-(4R,5S,6S)-3-[[(3S,5S)-5-(aminosulfonyl)aminomethyl]-3-pyrrolidine]sulfur]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclic[3,2,0]heptyl-2-ene-2-carboxylic acid-hydrate (doripenem). The X-ray powder diffraction pattern of the crystal powder shows main peaks when 2theta is equal to 15.20 degrees, 16.06 degrees, 16.83 degrees, 19.40 degrees, 21.29 degrees, 23.68 degrees, 24.08 degrees, 24.70 degrees, 26.28 degrees, 28.43 degrees, 29.17 degrees and 34.35 degrees. The novel crystal form has the advantages of easiness in preparation and industrial production, low cost, high solubility and high stability.