The invention provides an antistatic finishing process of a chemical fiber fabric. The antistatic finishing process comprises the following steps of pretreatment, preforming, dyeing, drying, padding, drying, baking, forming, calendering and winding. According to the antistatic finishing process, the chemical fiber fabric is firstly refined and then subjected to alkali weight reduction treatment during the pretreatment, so that the comfortable property of the chemical fiber fabric is enhanced, the integral property of the chemical fiber fabric is enhanced and the stability of the chemical fiber fabric is enhanced under the condition that the chemical fiber fabric is not damaged, and the stability of subsequent steps, namely the dyeing, the padding, the forming and the calendaring is guaranteed; an antistatic agent is added to the padding procedure, so that the antistatic property of the chemical fiber fabric is effectively improved, and the waterproof property and softening property of the chemical fiber fabric are both greatly enhanced through added waterproof agent and softener, the chitosan is also added to the padding procedure, the chitosan is a high-molecular substance with natural antibacterial and deodorant property, is safe and environmentally friendly, can also be used as the antistatic agent, and the antistatic property and antibacterial and deodorant property of the chemical fiber fabric are all greatly enhanced after the chitosan is added.