The invention provides mRNA capture sequences. The mRNA capture sequences comprise universal primers, rare
enzyme cutting sites,
cell tags, random molecular tags and PolyT sequences, wherein by introducing rare
enzyme cutting site sequences, sticky ends are provided for subsequent sequencing connector connection, so that two ends of a cDNA double strands are connected with two different sequencingconnectors. A synthesis method of a capture carrier used for mRNA capture and a production method of a high-
throughput single-
cell sequencing
library are further provided. According to the provided capture carrier, by synthesizing the mRNA capture sequences of the rare
enzyme cutting site sequences in situ and introducing the mRNA capture sequences of the rare enzyme cutting site sequences on a base material, the provided capture carrier is adopted for preparing the single-
cell sequencing
library, the single-cell capture efficiency and the
labelling efficiency of
oligonucleotide tags are improved, a process of constructing the
library is simplified, and the two ends of the produced cDNA double strands are connected with the two different sequencing connectors, so that it is guaranteed that one
dumbbell-shaped sequencing library is only assembled with a primer and
DNA polymerase, and one-to-one correspondence of the
dumbbell-shaped sequencing library, the primer and the
DNA polymeraseis the premise of guaranteeing single-cell real-time sequencing.