The invention discloses an automatic-induction type sewer pipeline filter, which comprises a nozzle cover (1) and a sleeve (2), and further comprises an induction mechanism, wherein an opening (3) is formed in the bottom of the sleeve (2); the opening (3) is movably connected to a storage device (4) which is provided with filter holes (5) in the bottom; the induction mechanism comprises a battery (6), a gravity sensor (7), an analog-to-digital converter (8), a micro controller (9) and indicator lamps (10), wherein the gravity sensor (7) is used for detecting the weight of the storage device (4) so as to acquire an analog signal; the analog-to-digital converter (8) is used for converting the analog signal into a digital signal; the micro controller (9) is used for acquiring a weight value, comparing the weight value with a preset weight value and for generating a control signal in accordance with a comparison result; and the indicator lamps (10) are arranged on the nozzle cover (1) and are turned on in accordance with the control signal. With the application of the automatic-induction type sewer pipeline filter disclosed by the invention, a water flow in a sewer pipeline can be filtered and impurities can be automatically induced; therefore, the sewer pipeline filter has an automatic-induction effect.