The invention relates to an absolute gravimeter and gyroscope integrated sensor based on atomic interference effect. The absolute gravimeter and gyroscope integrated sensor comprises a vacuum unit, afirst detection unit, a second detection unit and an optical unit which are installed in a magnetic shielding unit. The invention relates to an absolute gravimeter and gyroscope integrated sensing method based on atomic interference effect. The absolute gravimeter and gyroscope integrated sensing method comprises the steps that angular velocity information and acceleration information are sensed by measuring transverse atomic interference phase difference; and absolute gravity acceleration information is sensed by measuring the phase information of atomic interference in the vertical direction. The extraction of the absolute gravity acceleration information, single-axis rotation information and the acceleration information of a single cavity can be realized, the size and dimensions of thesensor are greatly reduced, the structure is simple, and an atomic inertial measurement sensor device for an inertial navigation system can be conveniently realized.