The invention discloses a urinal device with a urine collecting function. The device comprises a standing structure arranged in the ground, a urinal fixedly installed on the wall, a collecting pipe connected with a collecting tank and a blowdown pipe connected with a blowdown system. An installing block is fixedly installed at the portion, above the urinal, of the wall, a stretching groove extending left and right is formed in the installing block, an operating rod is slidably installed in the stretching groove, a sliding groove extending up and down is formed in the installing block, a sliding arm is slidably installed in the sliding groove, an operation groove communicated with the outer end is formed in the upper side of the right end wall of the sliding groove, a limiting groove is formed in the operating rod, a separation pipe is fixedly installed in the ground, the lower end of the separation pipe is installed in the blowdown pipe, the collecting pipe is fixedly connected with the upper end of the side wall of the separation pipe, the collecting pipe is communicated with the interior of the separation pipe, a hopper is fixedly arranged at the upper end of the separation pipe,and a separation core is slidably installed in the separation pipe.