▎ 摘　　要

NOVELTY - Preparing platinum-carbon catalyst comprises obtaining a suspension containing a carbon support, a polyol and a platinum precursor, continuously subjecting the suspension and the reducing gas to reduction reaction in a micro channel continuous flow reactor, so that the platinum ions in the suspension are reduced to platinum element and supported on the carbon carrier, where the reducing gas is obtained by mixing hydrogen and a protective gas in a ratio of 1:4-6 and the protective gas comprises nitrogen, argon and helium USE - The method is useful for preparing platinum-carbon catalyst ADVANTAGE - The platinum-carbon catalyst has better electrochemical active area and better electrocatalytic performance. The method improves the reaction efficiency and is suitable for suitable for amplification production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for platinum-carbon catalyst prepared by the above method. The loading amount of platinum is 30-50% in the platinum-carbon catalyst.