The present invention relates to the field of medicine, and particularly relates to multiple crystal forms of the compounds of formula (I), a preparation method therefor, pharmaceutical preparations and pharmaceutical compositions containing the crystal forms and an application thereof in preparation of a medicine for enhancing cGMP signaling function, and in particular relates to applications of the compounds in preparation of medicines for treatment and/or prevention of sexual dysfunction, benign prostatic hyperplasia, lower urinary tract symptoms and the like.