The structure and dielectric properties of BaO-TiO

2

-Nd

2

O

3

（BTN） ceramics are studied. Doping with appropriate amount of glass and additives in the system

a series of temperature compensating monolithic capacitor ceramic （MLC） is obtained at intermediate firing temperature. The experimental results prove that the Curie temperature （T

c

） of BTN ceramics shows a gradual shift with the increasing of Nd

2

O

3

when Ti/Ba=1.003. The micrographs taken by SEM show that the grain size depends on Nd￣（3+） content. The influence of Ti/Ba ratio on the temperature coefficient of permittivity （α

ε

） of the ceramic has been investigated. The permittivity （α

ε

） and（ε） of BTN system can be adjusted both by changing the Nd

2

O

3

content and Ti/Ba ratio. Moreover

the influences of CaTiO

3

on the electrical properties of BTN are also analyzed.