Production process of non-heavy metal tanned cow leather

The invention discloses a production process of non-heavy metal tanned cow leather. The production process comprises the following working procedures of taking grey bare leather, weighing (1), pre-deliming, main deliming, softening, washing, main tanning, collaborative tanning, standing, shaving, weighing (2), treatment (1) and vibration staking (1). The treatment (1) comprises softening (1), neutralizing (1), washing (1), filling (1), fat liquoring (1), standing (1) and drying (1). A degreasing agent, a deliming agent and a complexing agent are adopted in the pre-deliming and main deliming processes; an amphoteric organic compound is adopted in the main tanning process; a phenolic synthetic tanning agent is adopted in the collaborative tanning process; an amphoteric sulfo fatting agent is adopted in the step of neutralizing (1); a sulfone synthetic tanning agent is adopted in the step of filling (1); a cationic fat liquoring agent is adopted in the fat liquoring step (1); the degreasing agent is a nonionic s