Integrated front vehicle body, frame and vehicle

The invention relates to an integrated front vehicle body, a frame and a vehicle. The front wall structure comprises a front wall mechanism, a connecting piece and a suspension fixing piece, the front wall mechanism comprises an upper cross beam, an inner plate, a lower cross beam and a front longitudinal beam, the upper cross beam, the inner plate and the lower cross beam are connected in the first direction, the front longitudinal beam extends in the second direction and is connected to the lower cross beam, the upper cross beam and the lower cross beam extend in the third direction, and in the second direction, the inner plate comprises a first side and a second side which are opposite; the front longitudinal beam is located on the first side. The connecting piece is arranged on the second side and forms an integrated structure with the upper cross beam, the inner plate, the lower cross beam and the front longitudinal beam; the suspension fixing piece is integrally formed on the connecting piece and used f