The work aims to construct a carbon footprint model to measure the carbon emissions in the process, and carry out an empirical study, regarding the problem of systematically measuring the carbon emissions of the whole cold chain logistics of litchi under the dual-channel circulation mode. Carbon emission coefficient method and input-output method were used to calculate the carbon emissions from the postharvest pre-cooling, circulation and processing, refrigerated transportation, storage, distribution, sales and end-users of litchi under the dual-channel circulation mode set up by wholesalers. With the help of Matlab, the model was optimized and solved. Under the condition of setting parameters and taking into account the carbon emissions, the least total cost and the least total carbon emissions were used for the operation. Based on the empirical evidence, the total cost was 4.0734 million yuan, and the total carbon emissions were 223.14 t. From the comparative analysis on the carbon footprint under the dual-channel circulation mode of litchi in the chain-braking circumstance, the total cost of litchi under the chain-breaking circulation mode was 4.5399 million yuan and the carbon emission was 225.71 t. Different decay rates under different packages were compared and analyzed. Considering the carbon emissions, the decay rate increased from 0 to 30%, and the carbon emissions increased by 4%. The model can effectively measure the carbon footprint of the whole cold chain logistics activities of litchi under the dual-channel circulation mode, and provide support for the design and implementation of the maximum coordination of the economic and environmental benefits of the whole cold chain logistics used by litchi.