A bleacher seat having a cloth cover, tube insertion sleeves and a bleacher seat support assembly. The bleacher seat support assembly has two foot pad tube assemblies, two back tubes, four tube plugs, four seat tubes, a middle cross tube, two connectors, and two elastic ropes. Each connector is of a four-way connecting port structure. Horizontal connecting ports of the two connectors are respectively connected to two ends of the middle cross tube, front connecting ports of the two connectors are respectively connected to the foot pad tube assemblies, two upper connecting ports which are internally communicated with each other are formed in the upper end of each connector, each upper connecting port is connected to the lower end of one seat tube, and the upper end of each rear seat tube is connected to one back tube.