A couple-multi-stripe laser diode has been fabricated by means of LPE methods, which is integrated by fifteen oxide-isolated stripe diode lasers. The peak power of pulse is 4W/facet (300ns. 5kHz). On the basis of numerical analysis for waveguide characteristics of the single stripe laser, some properties of waveguide for the eouple-rnulti-stripe laser have been analyzed and calculated. The results are in agreement with experiment basically.