This detachable wide slat base adopts split assembly design, which can be disassembled into multiple independent parts for flat packaging, greatly saving transportation and storage space, lowering logistics costs for wholesalers and mattress manufacturers. It is equipped with extra wide solid support slats, reducing the total number of slats while expanding the bearing area, distributing human pressure more evenly and thoroughly avoiding mattress local sagging. The spliced steel frame adopts thickened metal tubes and quick lock connection structure, easy to assemble without complex tools, and the overall stability after installation is comparable to integrated welded frames, not easy to shake or loose. The surface of all steel parts is treated with electrostatic anti-rust spraying, moisture-proof and anti-corrosion, adapting to long-term use in homes, apartments and hotel projects. Mute gaskets are equipped at the contact positions between wide slats and metal frames to buffer friction, eliminate abnormal creaking sounds during rolling over and provide quiet sleep. The wide slat layout ensures smooth air circulation under the mattress, prevents damp mildew and odor accumulation, and protects the service life of supporting mattresses. It matches all mainstream mattresses such as spring, latex and memory foam, supports customized sizes, bulk wholesale and OEM supporting cooperation.