Broadbent's comments echo the central message from the BoE recently that despite a drop in the headline rate of inflation, it is too soon to talk about cutting interest rates.
He said there had been a slowdown in the official measure of wage growth but there were questions about whether it was accurately capturing what was going on with pay.
"One would want to see further evidence, across several indicators, before concluding things are on a clear downward trend," Broadbent said in the text of a speech to the London Business School.
Last week the BoE kept interest rates at a 15-year high for a third meeting in a row and said again that borrowing costs would probably have to stay elevated for an extended period to ensure the risks from inflation - including excessive wage growth - are quashed.
Broadbent voted with the majority of Monetary Policy Committee (MPC) members who backed holding Bank Rate at 5.25%.
In his speech, he listed disparities between various labour market measures, a problem which has been aggravated by the recent decision by the Office for National Statistics to suspend some of its data on employment and unemployment.
Broadbent said the MPC still put most weight on the ONS's average weekly earnings (AWE) data, which has not been affected by the recent problems.
"But, taking all this together, there is a question about whether rapid pick-up in wage growth in the spring and summer was quite as marked as in the official data," he said.
"AWE growth has been particularly volatile in the past year or so and other indicators of wage growth haven't been quite as strong," Broadbent said.
(Reporting by William Schomberg and David Milliken)
