The invention relates to wastewater reuse and treatment equipment for filtering sewage by means of a tubular micro-filtration membrane and a process flow for treating industrial wastewater by means of the tubular micro-filtration membrane. The wastewater reuse and treatment equipment comprises a wastewater concentration tank, a tubular micro-filtration membrane component unit, an automatic control cabinet, a rinsing water tank, a cleaning water tank, a water supply circulation pump and a cleaning pump, wherein the tubular micro-filtration membrane component unit is fixedly connected with the wastewater concentration tank through a pipeline to form a water circulation loop; the inlet of the water circulation loop is fixed to the lower end of the wastewater concentration tank and is provided with the water supply circulation pump; the tail end of the water circulation loop is provided with a concentrated water return pipe; the water outlet of the concentrated water return pipe is fixed to the upper end of the wastewater concentration tank; the tubular micro-filtration membrane component unit is communicated with a water producing tube through a pipeline; the cleaning water tank and the rinsing water tank are communicated with the wastewater inlet end of the tubular micro-filtration membrane component unit through pipelines; the cleaning pump is arranged on a connecting pipeline; and the automatic control cabinet is electrically connected with a control regulating valve, a controller and a measuring instrument which are fixedly connected to the pipelines through circuits.