Abstract: A telescopic desk frame is disclosed that includes two desk leg assemblies and at least one beam assembly configured to be connected with and between the two desk leg assemblies; where the beam assembly includes a first beam and a second beam which are relatively telescopable, the first beam includes a first flange, the second beam includes a second flange which abuts against the first flange. The beam assembly disclosed can not only realize the telescopic function of the telescopic desk frame, but also improve the connection stability of the telescopic desk frame and enhance the supporting strength of the telescopic desk frame.