Environment-friendly polyamide flame-retardant master batch and preparation method thereof

The invention relates to an environment-friendly polyamide flame-retardant master batch and a preparation method thereof. The environment-friendly polyamide flame-retardant master batch comprises the following components: polyamide resin, a halogen-free flame retardant composition, a dispersant and a stabilizer, wherein the halogen-free flame retardant composition comprises the following components in percentage by mass: 50%-75% of alkyl phosphinate, 20%-45% of polyphosphate and 5%-10% of a synergist, wherein oxide ceramics can be generated after the polyphosphate is decomposed. The environment-friendly polyamide flame-retardant master batch has good thermal stability, melt fluidity, whiteness and flame retardance, no toxic gas is generated in the flame-retardant process, the environment-friendly requirement is met, the flame-retardant effect is good, and the environment-friendly polyamide flame-retardant master batch can be widely applied to the field of flame-retardant plastic production. 本发明涉及一种环保型聚酰胺阻燃母粒及