The present invention belongs to the field of building energy-saving materials, and relates to white vitrified bead modified insulation masonry mortar and a using method thereof. The white vitrified bead modified insulation masonry mortar uses vitrified beads to partly replace aggregate, and comprises the fowling components by mass: 47.5-70.5% of a gelled material, 10%-35% of the vitrified beads, 3.6-20% of the aggregate, 0.3%-2% of dispersable emulsion powder, 0.1%-0.3% of hydroxypropyl methyl cellulose ether, 0.1%-1.2% of polypropylene fiber, 0.5%-1% of sepiolite fiber, 0.1%-0.5% of a waterproofing agent and 0.08%-0.3% of mortar king. The white vitrified bead modified insulation masonry mortar has excellent construction performance, good wall body bonding performance, and white color, and in the premise of meeting the basic mechanical properties and durability properties of the bonding mortar, effectively reduces the mortar thermal conductivity coefficient, saves building energy consumption, and is very broad in application development prospect.