The invention discloses a dedicated isolating and protecting wall for an aerial lift truck. The aerial lift truck comprises an insulation bucket. The isolating and protecting wall comprises two sliding rails, which are fixed at one side of the insulation bucket, a plurality of insulated isolation baffle plates, support connecting pieces, which are correspondingly connected with the insulated isolation baffle plates, sliding blocks, and J-shaped bolts. Kidney-shaped slots are respectively arranged at two sides of each sliding rail. The J-shaped bolts are fixed on the upper edge of the insulation bucket by traversing the kidney slots. Two sides of the insulated isolation baffle plates are semicircle-shaped. A plurality of small holes are arranged at the lower edge of a main body part of the insulated isolation baffle plates in pair. Grooves for clamping the insulated isolation baffle plates and the small holes corresponding to fixing bolts for fixing the insulated isolation baffle plates are arranged at the upper half parts of the support connecting pieces, and nylon tubes which are connected with the upper half parts of the sliding blocks are arranged at the lower half parts of the support connecting pieces. Small holes which use safety adjustment pins to fix the support connecting pieces are arranged at the side of the upper half parts of the sliding blocks, and the shape of the lower half part of each sliding block matches that of a sliding groove in one corresponding sliding rail. The dedicated isolating and protecting wall for the aerial lift truck is simple in structure, convenient to maintain, effective for protection, and safe and reliable.