Abstract: The present application relates to the field of tires and provides a passenger all-steel tire and a turn-up process in a building process thereof. It is advantageous to improve tire strength, impact resistance, endurance and prolong service life. A longitudinal section of the passenger all-steel tire comprises a crown (1) located at an outer side of an upper portion, shoulders (2) located on two sides of the crown (1) and connected to the crown (1), a sidewall (3) connected to the shoulder (2), a bead (6) located at a lower portion of the sidewall (3) and matched with a rim, and a carcass (4) located at an inner side of the longitudinal section and the carcass (4) is a ply of all-steel carcass (41).