The utility model discloses an electric protective net device for a manual hole digging pile. The utility model belongs to the technical field of construction safety guarantee equipment. The problem that a protection plate cannot achieve effective protection in the existing manual hole digging pile construction process can be solved. The device comprises a fixed protection part and a telescopic protection part, the fixed protection part comprises a supporting frame and a steel wire protection net located in the supporting frame. The supporting frame comprises a C-shaped framework, a pluralityof transverse rods and vertical rods. One end of the vertical rod is connected with the C-shaped framework; the cross rods are respectively connected with the C-shaped framework and the vertical rods;slide ways are arranged on the inner sides of the vertical rods, the telescopic protection part comprises an electric push rod device, a plurality of sliding rods, a plurality of foldable linkage rods and a foldable steel wire protection net, push rods of the electric push rod device are connected with the sliding rods, the two ends of the sliding rods are located in the sliding ways of the vertical rods respectively, the linkage rods are located on the two sides of the foldable steel wire protection net, and the free ends of the linkage rods are connected with the transverse rods and the sliding rods respectively. According to the utility model, the safety of operators in a hole is better protected, and the construction progress is greatly improved.