We report the results of a time-series CCD photometric survey of variable stars in the field of the open cluster NGC 2126 .
In about one square degree field covering the cluster , a total number of 21 variable candidates are detected during this survey , of which 16 are newly found .
The periods , classifications and spectral types of 14 newly discovered variables are discussed , which consist of six eclipsing binaries systems , three pulsating variable stars , three long period variables , one RS CVn star , and one W UMa or \delta Scuti star .
In addition , there are two variable candidates , the properties of which can not be determined in this paper .
By a method based on fitting spectral energy distributions ( SEDs ) of stars with theoretical ones , the membership probabilities and the fundamental parameters of this cluster are determined .
As a result , five variables are probably members of NGC 2126 .
The fundamental parameters of the this cluster are determined as : the metallicity to be 0.008 Z _ { \odot } , the age \log ( t ) = 8.95 , the distance modulus ( m - M ) _ { 0 } = 10.34 and the reddening value E ( B - V ) =0.55 mag .