The invention relates to the technical field of escalators, in particular to a safe and reliable escalator. The safe and reliable escalator comprises a handrail breast board, an apron board and a stair. An inner cover plate is arranged between the apron board and the handrail breast board. The apron board comprises an upper apron board body and a lower apron board body. The lower apron board body is arranged at the side edge of the stair, and an apron board safety protection device is connected to the lower apron board body. The upper apron board body comprises an arc-shaped anti-clamping part. The arc-shaped anti-clamping part is arranged on the stair and covers the side edge of the stair. The side edge of the stair is provided with a groove formed in the longitudinal direction. The arc-shaped anti-clamping part is provided with a blocking part stretching into the groove. The outer side of the blocking part is provided with a protection strip. According to the safe and reliable escalator, an object can be effectively prevented from entering a gap between the apron board and the stair by arranging the arc-shaped anti-clamping part, and the size of a clearance between the arc-shaped anti-clamping part and the end surface of the stair is adaptively adjusted along with the change of the seasonal temperature, so that the clearance is kept in a reasonable and safe range, and the situation that the apron board is stuck due to the fact that the apron board makes contact with the stair is prevented.