Negative carbon emission technology is an innovative approach aligned with net-zero goals, aimed at reducing atmospheric CO2concentrations, and is a crucial component of China's carbon-neutral technology system. Negative carbon emission solutions constitute amultifaceted and complex system, among which Direct Air Carbon Capture and Storage (DACCS) and Bioenergy with Carbon Captureand Storage (BECCS) are key technologies closely integrated with geological storage to achieve permanent emission reductions. Both ofthese technologies rely on mature geological storage techniques to securely sequester captured CO2 underground, preventing its re-entryinto the atmosphere and ensuring permanent reductions.This paper details the latest research progress and application status of the rapidlydeveloping DACCS and BECCS technologies. Regarding DACCS, it primarily introduces the two major technologies in DAC—liquidabsorption and solid adsorption—focusing on key materials and process technologies. It also analyzes the current application andeconomic feasibility of DAC technology, summarizes major operational and planned DAC demonstration projects both domestically andinternationally, and forecasts the key research directions for DAC in the future, as well as the feasibility of large-scale DAC deployment.Interms of BECCS, the paper outlines the main components of the BECCS technology chain and its basic process flow. It emphasizes thedevelopment status of various BECCS technology pathways, including biomass thermochemical conversion and biomass biochemicalconversion technologies closely related to fuel products, as well as biomass combustion technology commonly used for power generation.The paper explores the feasibility of deploying BECCS in different biomass energy utilization scenarios, summarizes the currentapplication status of BECCS technology, and lists major BECCS demonstration projects both domestically and abroad. Additionally, it analyzes the economic viability of the technology in connection with the production of green methanol. Based on the actual situation ofChina's biomass resources, the paper also provides an outlook on the future development of BECCS technology.