The invention discloses a CD-ROM drive operation speed improving method comprising the following steps: 1, setting the CD-ROM drive work mode in a 32-bit mode instead of using a MO-DOS compatible mode; 2, using PCI equipment to realize accelerated connection. The CD-ROM drive operation speed improving method is provided; the CD-ROM drive serves as computer external equipment; the CD-ROM drive workmode is set in the 32-bit mode instead of using the MO-DOS compatible mode, and the PCI equipment can realize accelerated connection. When a computer accesses the CD-ROM drive in the prior art, the access speed may be reduced by subjective or objective reasons; the CD-ROM drive operation speed improving method can solve said problems.