A field experiment was conducted at Main Agricultural Research Station, Dharwad from June to November, 2001 under irrigated conditions to study the economics of legume intercropping in paired row (60+120 cm) x 30 cm) of S41 mulberry. A laboratory experiment was also conducted during rainy season (from 18th August to 21st September, 2001) to study the silkworm (Bombyx mori L.) cocoon yield as influenced by legume intercropping system. The results revealed that cocoon yield did not differ significantly due to intercropping.  Among the intercropped legumes, soybean three rows gave significantly higher seed yield (1200 kg/ha) compared to rest of the intercropped treatments. The bhusa yield (stalk+husk) was significantly higher in greengram (three rows) intercropped with mulberry (6051 kg/ha).  Mulberry+greengram three rows recorded significantly higher net returns (Rs.50,129/ha/crop) and B:C ratio (4.28) compared to paired sole mulberry and it was on par with other intercropping system.