A method for storing a recording file of a multi-lens recording apparatus, adapted for being executed by a processor, characterized in that the method comprises: calculating (S205, S305, S405) a total recording capacity in response to one or multiple of a plurality of lenses being driven to perform a loop recording, wherein each of the lenses has a lens number correspondingly, and calculating the total recording capacity comprises: in response to one of the lenses being driven to perform the loop recording, calculating a file size of a file recorded by the lens being driven based on setting data of the lens being driven and setting the file size as the total recording capacity; and in response to multiple of the lenses being driven to perform the loop recording, calculating file sizes of files recorded individually by the multiple lenses being driven based on respective setting data of the multiple lenses being driven and setting sum of the file sizes as the total recording capacity; after obtaining the total recording capacity, determining (S210, S310, S410) whether a remaining capacity of a storage space is less than the total recording capacity; performing a file cleaning action on a plurality of recorded files stored in the storage space in response to the remaining capacity being less than the total recording capacity, comprising: deleting at least one of the recorded files stored in the storage space based on a recording time and a first amount of the recorded files corresponding to the lens number of each lens being driven being greater than a default amount, until the remaining capacity is no less than the total recording capacity; and in response to the remaining capacity being no less than the total recording capacity, performing (S215, S315, S415) the loop recording through each driven lens, associating a file currently recorded by each driven lens with the corresponding lens number, and then storing the file currently recorded by each driven lens to the storage space. calculating (S205, S305, S405) a total recording capacity in response to one or multiple of a plurality of lenses being driven to perform a loop recording, wherein each of the lenses has a lens number correspondingly, and calculating the total recording capacity comprises: in response to one of the lenses being driven to perform the loop recording, calculating a file size of a file recorded by the lens being driven based on setting data of the lens being driven and setting the file size as the total recording capacity; and in response to multiple of the lenses being driven to perform the loop recording, calculating file sizes of files recorded individually by the multiple lenses being driven based on respective setting data of the multiple lenses being driven and setting sum of the file sizes as the total recording capacity; in response to one of the lenses being driven to perform the loop recording, calculating a file size of a file recorded by the lens being driven based on setting data of the lens being driven and setting the file size as the total recording capacity; and in response to multiple of the lenses being driven to perform the loop recording, calculating file sizes of files recorded individually by the multiple lenses being driven based on respective setting data of the multiple lenses being driven and setting sum of the file sizes as the total recording capacity; after obtaining the total recording capacity, determining (S210, S310, S410) whether a remaining capacity of a storage space is less than the total recording capacity; performing a file cleaning action on a plurality of recorded files stored in the storage space in response to the remaining capacity being less than the total recording capacity, comprising: deleting at least one of the recorded files stored in the storage space based on a recording time and a first amount of the recorded files corresponding to the lens number of each lens being driven being greater than a default amount, until the remaining capacity is no less than the total recording capacity; and in response to the remaining capacity being no less than the total recording capacity, performing (S215, S315, S415) the loop recording through each driven lens, associating a file currently recorded by each driven lens with the corresponding lens number, and then storing the file currently recorded by each driven lens to the storage space.