The invention discloses 980MPa grade cold-rolled dual-phase steel with low requirements for cooling capacity of a production line and a manufacturing method thereof, and belongs to the technical fieldof steelmaking. The 980MPa grade cold-rolled dual-phase steel consists of the following chemical composition of, by mass, 0.14-0.17% of C, 0.10-0.30% of Si, 1.8-2.2% of Mn, less than or equal to 0.012% of P, 0.4-0.6% of Cr, 0.02-0.07% of Alt, 0.01-0.02% of Nb, 0.0005-0.002% of B, less than or equal to 0.005% of S, less than or equal to 0.005% of N, and the balance Fe and unavoidable impurities. According to the chemical composition, the 980MPa grade cold-rolled dual-phase steel is manufactured through smelting and slab casting process, and slab heating, hot rolling, coiling, pickling, cold rolling and continuous annealing process. In the continuous annealing process, the annealing temperature is controlled to be 800-820 DEG C, the cooling rate of a slow cooling section is less than 8 DEGC/s, the finish temperature of the slow cooling section is 620-640 DEG C, the finish temperature of a rapid cooling section is 300-320 DEG C, the cooling rate of the rapid cooling section is less than30 DEG C/s, and the over aging temperature is 270-310 DEG C. The dual-phase steel is prepared according to the chemical composition and the process of the 980MPa grade cold-rolled dual-phase steel with the low requirements for the cooling capacity of the production line and the manufacturing method thereof, the requirements for the rapid cooling rate in the production line are low, and the 980MPagrade cold-rolled dual-phase steel with the low requirements for the cooling capacity of the production line and the manufacturing method thereof can be used in a conventional common production line.