The invention discloses an advection sedimentation/immersion type ultrafiltration integrated water treatment device, relating to an ultrafiltration integrated water treatment device and solving the technical problems of long process and large occupation area of an existing ultrafiltration water treatment device. The advection sedimentation/immersion type ultrafiltration integrated water treatment device comprises an advection sedimentation tank, an immersion type ultrafiltration membrane assembly, a membrane assembly supporting tool, an ultrafiltration water outlet pipe, an ultrafiltration water outlet valve, an ultrafiltration sucking pump, an online vacuum pressure sensing device, an ultrafiltration backwashing valve, an ultrafiltration backwashing pump, a bubble diffusing device, an aerating pipe, a gas flow meter, an aerating valve, an aerating pump, a steady flow plate, a mud collecting tank, a perforation mud discharging pipe, a mud discharging valve and a sawtooth-shaped backwashing overflow weir, wherein one end of the ultrafiltration water outlet pipe is communicated with the immersion filtration membrane assembly, the other end of the ultrafiltration water outlet pipe is communicated with the ultrafiltration water outlet valve, the ultrafiltration water outlet valve is connected with the ultrafiltration sucking pump, one end of the aerating pipe is connected with the bubble diffusing device, the other end of the aerating pipe is connected with the aerating valve, and the mud discharging valve is arranged at one end of the perforation mud discharging pipe, outside a tank. The advection sedimentation/immersion type ultrafiltration integrated water treatment device is mainly applied to the field of water treatment.