The present invention discloses a fishing boat with guardrails. The fishing boat comprises a deck and two hulls of the same structure; the deck is laid on the tops of the two hulls; a gap is left between the two hulls; each hull includes an outer side wall plate, an inner side wall plate and a bottom surface plate; the bottom surface plate is parallel to the deck; the inner side wall plate is perpendicular to the bottom surface plate; the outer side wall plate is of a V-shaped structure formed through the butt joint of an upper inclined surface plate and a lower inclined surface plate; the periphery of the deck is provided with the guardrails; the guardrail is composed of a lower cross beam, an upper cross beam, a plurality of vertical beams and a plurality of V-shaped reinforcing ribs; the vertical beams and the V-shaped reinforcing ribs are distributed between the lower cross beam and the upper cross beam in a staggered manner; the uppers end and lower ends of the vertical beams are respectively connected with the upper cross beam and the lower cross beam; and the V-shaped reinforcing ribs are connected with the upper cross beam and the lower cross beam. With the above structure adopted, the fishing boat with the guardrails of the invention is very strong.